261501240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:363

約数の個数: 384

約数和(自身を含む): 1075576320

約数和(自身を除く): 814075080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 49, 52, 55, 56, 60, 65, 66, 70, 77, 78, 84, 88, 91, 98, 104, 105, 110, 120, 130, 132, 140, 143, 147, 154, 156, 165, 168, 182, 195, 196, 210, 220, 231, 245, 260, 264, 273, 280, 286, 294, 308, 311, 312, 330, 364, 385, 390, 392, 420, 429, 440, 455, 462, 490, 520, 539, 546, 572, 588, 616, 622, 637, 660, 715, 728, 735, 770, 780, 840, 858, 910, 924, 933, 980, 1001, 1078, 1092, 1144, 1155, 1176, 1244, 1274, 1320, 1365, 1430, 1470, 1540, 1555, 1560, 1617, 1716, 1820, 1848, 1866, 1911, 1960, 2002, 2145, 2156, 2177, 2184, 2310, 2488, 2548, 2695, 2730, 2860, 2940, 3003, 3080, 3110, 3185, 3234, 3421, 3432, 3640, 3732, 3822, 4004, 4043, 4290, 4312, 4354, 4620, 4665, 5005, 5096, 5390, 5460, 5720, 5880, 6006, 6220, 6370, 6468, 6531, 6842, 7007, 7464, 7644, 8008, 8085, 8086, 8580, 8708, 9240, 9330, 9555, 10010, 10263, 10780, 10885, 10920, 12012, 12129, 12440, 12740, 12936, 13062, 13684, 14014, 15015, 15239, 15288, 16170, 16172, 17105, 17160, 17416, 18660, 19110, 20020, 20215, 20526, 21021, 21560, 21770, 23947, 24024, 24258, 25480, 26124, 27368, 28028, 28301, 30030, 30478, 32340, 32344, 32655, 34210, 35035, 37320, 38220, 40040, 40430, 41052, 42042, 43540, 44473, 45717, 47894, 48516, 51315, 52248, 56056, 56602, 60060, 60645, 60956, 64680, 65310, 68420, 70070, 71841, 76195, 76440, 80860, 82104, 84084, 84903, 87080, 88946, 91434, 95788, 97032, 102630, 105105, 113204, 119735, 120120, 121290, 121912, 130620, 133419, 136840, 140140, 141505, 143682, 152390, 161720, 167629, 168168, 169806, 177892, 182868, 191576, 198107, 205260, 210210, 222365, 226408, 228585, 239470, 242580, 261240, 266838, 280280, 283010, 287364, 304780, 311311, 335258, 339612, 355784, 359205, 365736, 396214, 410520, 420420, 424515, 444730, 457170, 478940, 485160, 502887, 533676, 566020, 574728, 594321, 609560, 622622, 667095, 670516, 679224, 718410, 792428, 838145, 840840, 849030, 889460, 914340, 933933, 957880, 990535, 1005774, 1067352, 1132040, 1188642, 1245244, 1334190, 1341032, 1436820, 1556555, 1584856, 1676290, 1698060, 1778920, 1828680, 1867866, 1981070, 2011548, 2179177, 2377284, 2490488, 2514435, 2668380, 2873640, 2971605, 3113110, 3352580, 3396120, 3735732, 3962140, 4023096, 4358354, 4669665, 4754568, 5028870, 5336760, 5943210, 6226220, 6537531, 6705160, 7471464, 7924280, 8716708, 9339330, 10057740, 10895885, 11886420, 12452440, 13075062, 17433416, 18678660, 20115480, 21791770, 23772840, 26150124, 32687655, 37357320, 43583540, 52300248, 65375310, 87167080, 130750620, 261501240]

約数ペア:

[(1, 261501240), (2, 130750620), (3, 87167080), (4, 65375310), (5, 52300248), (6, 43583540), (7, 37357320), (8, 32687655), (10, 26150124), (11, 23772840), (12, 21791770), (13, 20115480), (14, 18678660), (15, 17433416), (20, 13075062), (21, 12452440), (22, 11886420), (24, 10895885), (26, 10057740), (28, 9339330), (30, 8716708), (33, 7924280), (35, 7471464), (39, 6705160), (40, 6537531), (42, 6226220), (44, 5943210), (49, 5336760), (52, 5028870), (55, 4754568), (56, 4669665), (60, 4358354), (65, 4023096), (66, 3962140), (70, 3735732), (77, 3396120), (78, 3352580), (84, 3113110), (88, 2971605), (91, 2873640), (98, 2668380), (104, 2514435), (105, 2490488), (110, 2377284), (120, 2179177), (130, 2011548), (132, 1981070), (140, 1867866), (143, 1828680), (147, 1778920), (154, 1698060), (156, 1676290), (165, 1584856), (168, 1556555), (182, 1436820), (195, 1341032), (196, 1334190), (210, 1245244), (220, 1188642), (231, 1132040), (245, 1067352), (260, 1005774), (264, 990535), (273, 957880), (280, 933933), (286, 914340), (294, 889460), (308, 849030), (311, 840840), (312, 838145), (330, 792428), (364, 718410), (385, 679224), (390, 670516), (392, 667095), (420, 622622), (429, 609560), (440, 594321), (455, 574728), (462, 566020), (490, 533676), (520, 502887), (539, 485160), (546, 478940), (572, 457170), (588, 444730), (616, 424515), (622, 420420), (637, 410520), (660, 396214), (715, 365736), (728, 359205), (735, 355784), (770, 339612), (780, 335258), (840, 311311), (858, 304780), (910, 287364), (924, 283010), (933, 280280), (980, 266838), (1001, 261240), (1078, 242580), (1092, 239470), (1144, 228585), (1155, 226408), (1176, 222365), (1244, 210210), (1274, 205260), (1320, 198107), (1365, 191576), (1430, 182868), (1470, 177892), (1540, 169806), (1555, 168168), (1560, 167629), (1617, 161720), (1716, 152390), (1820, 143682), (1848, 141505), (1866, 140140), (1911, 136840), (1960, 133419), (2002, 130620), (2145, 121912), (2156, 121290), (2177, 120120), (2184, 119735), (2310, 113204), (2488, 105105), (2548, 102630), (2695, 97032), (2730, 95788), (2860, 91434), (2940, 88946), (3003, 87080), (3080, 84903), (3110, 84084), (3185, 82104), (3234, 80860), (3421, 76440), (3432, 76195), (3640, 71841), (3732, 70070), (3822, 68420), (4004, 65310), (4043, 64680), (4290, 60956), (4312, 60645), (4354, 60060), (4620, 56602), (4665, 56056), (5005, 52248), (5096, 51315), (5390, 48516), (5460, 47894), (5720, 45717), (5880, 44473), (6006, 43540), (6220, 42042), (6370, 41052), (6468, 40430), (6531, 40040), (6842, 38220), (7007, 37320), (7464, 35035), (7644, 34210), (8008, 32655), (8085, 32344), (8086, 32340), (8580, 30478), (8708, 30030), (9240, 28301), (9330, 28028), (9555, 27368), (10010, 26124), (10263, 25480), (10780, 24258), (10885, 24024), (10920, 23947), (12012, 21770), (12129, 21560), (12440, 21021), (12740, 20526), (12936, 20215), (13062, 20020), (13684, 19110), (14014, 18660), (15015, 17416), (15239, 17160), (15288, 17105), (16170, 16172)]