131420520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{431}}^1$

素因数の和:477

約数の個数: 288

約数和(自身を含む): 537788160

約数和(自身を除く): 406367640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 110, 120, 121, 126, 132, 140, 154, 165, 168, 180, 198, 210, 220, 231, 242, 252, 264, 280, 308, 315, 330, 360, 363, 385, 396, 420, 431, 440, 462, 484, 495, 504, 605, 616, 630, 660, 693, 726, 770, 792, 840, 847, 862, 924, 968, 990, 1089, 1155, 1210, 1260, 1293, 1320, 1386, 1452, 1540, 1694, 1724, 1815, 1848, 1980, 2155, 2178, 2310, 2420, 2520, 2541, 2586, 2772, 2904, 3017, 3080, 3388, 3448, 3465, 3630, 3879, 3960, 4235, 4310, 4356, 4620, 4741, 4840, 5082, 5172, 5445, 5544, 6034, 6465, 6776, 6930, 7260, 7623, 7758, 8470, 8620, 8712, 9051, 9240, 9482, 10164, 10344, 10890, 12068, 12705, 12930, 13860, 14223, 14520, 15085, 15246, 15516, 16940, 17240, 18102, 18964, 19395, 20328, 21780, 23705, 24136, 25410, 25860, 27153, 27720, 28446, 30170, 30492, 31032, 33187, 33880, 36204, 37928, 38115, 38790, 42669, 43560, 45255, 47410, 50820, 51720, 52151, 54306, 56892, 60340, 60984, 66374, 71115, 72408, 76230, 77580, 85338, 90510, 94820, 99561, 101640, 104302, 108612, 113784, 120680, 132748, 135765, 142230, 152460, 155160, 156453, 165935, 170676, 181020, 189640, 199122, 208604, 213345, 217224, 260755, 265496, 271530, 284460, 298683, 304920, 312906, 331870, 341352, 362040, 365057, 398244, 417208, 426690, 469359, 497805, 521510, 543060, 568920, 597366, 625812, 663740, 730114, 782265, 796488, 853380, 938718, 995610, 1043020, 1086120, 1095171, 1194732, 1251624, 1327480, 1460228, 1493415, 1564530, 1706760, 1825285, 1877436, 1991220, 2086040, 2190342, 2346795, 2389464, 2920456, 2986830, 3129060, 3285513, 3650570, 3754872, 3982440, 4380684, 4693590, 5475855, 5973660, 6258120, 6571026, 7301140, 8761368, 9387180, 10951710, 11947320, 13142052, 14602280, 16427565, 18774360, 21903420, 26284104, 32855130, 43806840, 65710260, 131420520]

約数ペア:

[(1, 131420520), (2, 65710260), (3, 43806840), (4, 32855130), (5, 26284104), (6, 21903420), (7, 18774360), (8, 16427565), (9, 14602280), (10, 13142052), (11, 11947320), (12, 10951710), (14, 9387180), (15, 8761368), (18, 7301140), (20, 6571026), (21, 6258120), (22, 5973660), (24, 5475855), (28, 4693590), (30, 4380684), (33, 3982440), (35, 3754872), (36, 3650570), (40, 3285513), (42, 3129060), (44, 2986830), (45, 2920456), (55, 2389464), (56, 2346795), (60, 2190342), (63, 2086040), (66, 1991220), (70, 1877436), (72, 1825285), (77, 1706760), (84, 1564530), (88, 1493415), (90, 1460228), (99, 1327480), (105, 1251624), (110, 1194732), (120, 1095171), (121, 1086120), (126, 1043020), (132, 995610), (140, 938718), (154, 853380), (165, 796488), (168, 782265), (180, 730114), (198, 663740), (210, 625812), (220, 597366), (231, 568920), (242, 543060), (252, 521510), (264, 497805), (280, 469359), (308, 426690), (315, 417208), (330, 398244), (360, 365057), (363, 362040), (385, 341352), (396, 331870), (420, 312906), (431, 304920), (440, 298683), (462, 284460), (484, 271530), (495, 265496), (504, 260755), (605, 217224), (616, 213345), (630, 208604), (660, 199122), (693, 189640), (726, 181020), (770, 170676), (792, 165935), (840, 156453), (847, 155160), (862, 152460), (924, 142230), (968, 135765), (990, 132748), (1089, 120680), (1155, 113784), (1210, 108612), (1260, 104302), (1293, 101640), (1320, 99561), (1386, 94820), (1452, 90510), (1540, 85338), (1694, 77580), (1724, 76230), (1815, 72408), (1848, 71115), (1980, 66374), (2155, 60984), (2178, 60340), (2310, 56892), (2420, 54306), (2520, 52151), (2541, 51720), (2586, 50820), (2772, 47410), (2904, 45255), (3017, 43560), (3080, 42669), (3388, 38790), (3448, 38115), (3465, 37928), (3630, 36204), (3879, 33880), (3960, 33187), (4235, 31032), (4310, 30492), (4356, 30170), (4620, 28446), (4741, 27720), (4840, 27153), (5082, 25860), (5172, 25410), (5445, 24136), (5544, 23705), (6034, 21780), (6465, 20328), (6776, 19395), (6930, 18964), (7260, 18102), (7623, 17240), (7758, 16940), (8470, 15516), (8620, 15246), (8712, 15085), (9051, 14520), (9240, 14223), (9482, 13860), (10164, 12930), (10344, 12705), (10890, 12068)]