201521320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1$

素因数の和:768

約数の個数: 192

約数和(自身を含む): 620524800

約数和(自身を除く): 419003480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 49, 52, 55, 56, 65, 70, 77, 88, 91, 98, 104, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 280, 286, 308, 364, 385, 392, 440, 455, 490, 520, 539, 572, 616, 637, 715, 719, 728, 770, 910, 980, 1001, 1078, 1144, 1274, 1430, 1438, 1540, 1820, 1960, 2002, 2156, 2548, 2695, 2860, 2876, 3080, 3185, 3595, 3640, 4004, 4312, 5005, 5033, 5096, 5390, 5720, 5752, 6370, 7007, 7190, 7909, 8008, 9347, 10010, 10066, 10780, 12740, 14014, 14380, 15818, 18694, 20020, 20132, 21560, 25165, 25480, 28028, 28760, 31636, 35035, 35231, 37388, 39545, 40040, 40264, 46735, 50330, 55363, 56056, 63272, 65429, 70070, 70462, 74776, 79090, 93470, 100660, 102817, 110726, 130858, 140140, 140924, 158180, 176155, 186940, 201320, 205634, 221452, 261716, 276815, 280280, 281848, 316360, 327145, 352310, 373880, 387541, 411268, 442904, 458003, 514085, 523432, 553630, 654290, 704620, 719719, 775082, 822536, 916006, 1028170, 1107260, 1308580, 1409240, 1439438, 1550164, 1832012, 1937705, 2056340, 2214520, 2290015, 2617160, 2878876, 3100328, 3598595, 3664024, 3875410, 4112680, 4580030, 5038033, 5757752, 7197190, 7750820, 9160060, 10076066, 14394380, 15501640, 18320120, 20152132, 25190165, 28788760, 40304264, 50380330, 100760660, 201521320]

約数ペア:

[(1, 201521320), (2, 100760660), (4, 50380330), (5, 40304264), (7, 28788760), (8, 25190165), (10, 20152132), (11, 18320120), (13, 15501640), (14, 14394380), (20, 10076066), (22, 9160060), (26, 7750820), (28, 7197190), (35, 5757752), (40, 5038033), (44, 4580030), (49, 4112680), (52, 3875410), (55, 3664024), (56, 3598595), (65, 3100328), (70, 2878876), (77, 2617160), (88, 2290015), (91, 2214520), (98, 2056340), (104, 1937705), (110, 1832012), (130, 1550164), (140, 1439438), (143, 1409240), (154, 1308580), (182, 1107260), (196, 1028170), (220, 916006), (245, 822536), (260, 775082), (280, 719719), (286, 704620), (308, 654290), (364, 553630), (385, 523432), (392, 514085), (440, 458003), (455, 442904), (490, 411268), (520, 387541), (539, 373880), (572, 352310), (616, 327145), (637, 316360), (715, 281848), (719, 280280), (728, 276815), (770, 261716), (910, 221452), (980, 205634), (1001, 201320), (1078, 186940), (1144, 176155), (1274, 158180), (1430, 140924), (1438, 140140), (1540, 130858), (1820, 110726), (1960, 102817), (2002, 100660), (2156, 93470), (2548, 79090), (2695, 74776), (2860, 70462), (2876, 70070), (3080, 65429), (3185, 63272), (3595, 56056), (3640, 55363), (4004, 50330), (4312, 46735), (5005, 40264), (5033, 40040), (5096, 39545), (5390, 37388), (5720, 35231), (5752, 35035), (6370, 31636), (7007, 28760), (7190, 28028), (7909, 25480), (8008, 25165), (9347, 21560), (10010, 20132), (10066, 20020), (10780, 18694), (12740, 15818), (14014, 14380)]