81341520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 290314752

約数和(自身を除く): 208973232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 29, 30, 31, 39, 40, 48, 52, 58, 60, 62, 65, 78, 80, 87, 93, 104, 116, 120, 124, 130, 145, 155, 156, 174, 186, 195, 208, 232, 240, 248, 260, 290, 310, 312, 348, 372, 377, 390, 403, 435, 464, 465, 496, 520, 580, 620, 624, 696, 744, 754, 780, 806, 841, 870, 899, 930, 1040, 1131, 1160, 1209, 1240, 1392, 1488, 1508, 1560, 1612, 1682, 1740, 1798, 1860, 1885, 2015, 2262, 2320, 2418, 2480, 2523, 2697, 3016, 3120, 3224, 3364, 3480, 3596, 3720, 3770, 4030, 4205, 4495, 4524, 4836, 5046, 5394, 5655, 6032, 6045, 6448, 6728, 6960, 7192, 7440, 7540, 8060, 8410, 8990, 9048, 9672, 10092, 10788, 10933, 11310, 11687, 12090, 12615, 13456, 13485, 14384, 15080, 16120, 16820, 17980, 18096, 19344, 20184, 21576, 21866, 22620, 23374, 24180, 25230, 26071, 26970, 30160, 32240, 32799, 33640, 35061, 35960, 40368, 43152, 43732, 45240, 46748, 48360, 50460, 52142, 53940, 54665, 58435, 65598, 67280, 70122, 71920, 78213, 87464, 90480, 93496, 96720, 100920, 104284, 107880, 109330, 116870, 130355, 131196, 140244, 156426, 163995, 174928, 175305, 186992, 201840, 208568, 215760, 218660, 233740, 260710, 262392, 280488, 312852, 327990, 338923, 350610, 391065, 417136, 437320, 467480, 521420, 524784, 560976, 625704, 655980, 677846, 701220, 782130, 874640, 934960, 1016769, 1042840, 1251408, 1311960, 1355692, 1402440, 1564260, 1694615, 2033538, 2085680, 2623920, 2711384, 2804880, 3128520, 3389230, 4067076, 5083845, 5422768, 6257040, 6778460, 8134152, 10167690, 13556920, 16268304, 20335380, 27113840, 40670760, 81341520]

約数ペア:

[(1, 81341520), (2, 40670760), (3, 27113840), (4, 20335380), (5, 16268304), (6, 13556920), (8, 10167690), (10, 8134152), (12, 6778460), (13, 6257040), (15, 5422768), (16, 5083845), (20, 4067076), (24, 3389230), (26, 3128520), (29, 2804880), (30, 2711384), (31, 2623920), (39, 2085680), (40, 2033538), (48, 1694615), (52, 1564260), (58, 1402440), (60, 1355692), (62, 1311960), (65, 1251408), (78, 1042840), (80, 1016769), (87, 934960), (93, 874640), (104, 782130), (116, 701220), (120, 677846), (124, 655980), (130, 625704), (145, 560976), (155, 524784), (156, 521420), (174, 467480), (186, 437320), (195, 417136), (208, 391065), (232, 350610), (240, 338923), (248, 327990), (260, 312852), (290, 280488), (310, 262392), (312, 260710), (348, 233740), (372, 218660), (377, 215760), (390, 208568), (403, 201840), (435, 186992), (464, 175305), (465, 174928), (496, 163995), (520, 156426), (580, 140244), (620, 131196), (624, 130355), (696, 116870), (744, 109330), (754, 107880), (780, 104284), (806, 100920), (841, 96720), (870, 93496), (899, 90480), (930, 87464), (1040, 78213), (1131, 71920), (1160, 70122), (1209, 67280), (1240, 65598), (1392, 58435), (1488, 54665), (1508, 53940), (1560, 52142), (1612, 50460), (1682, 48360), (1740, 46748), (1798, 45240), (1860, 43732), (1885, 43152), (2015, 40368), (2262, 35960), (2320, 35061), (2418, 33640), (2480, 32799), (2523, 32240), (2697, 30160), (3016, 26970), (3120, 26071), (3224, 25230), (3364, 24180), (3480, 23374), (3596, 22620), (3720, 21866), (3770, 21576), (4030, 20184), (4205, 19344), (4495, 18096), (4524, 17980), (4836, 16820), (5046, 16120), (5394, 15080), (5655, 14384), (6032, 13485), (6045, 13456), (6448, 12615), (6728, 12090), (6960, 11687), (7192, 11310), (7440, 10933), (7540, 10788), (8060, 10092), (8410, 9672), (8990, 9048)]