816531240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13691}}^1$

素因数の和:13783

約数の個数: 128

約数和(自身を含む): 2839173120

約数和(自身を除く): 2022641880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3976, 4260, 4970, 5964, 7455, 8520, 9940, 11928, 13691, 14910, 19880, 27382, 29820, 41073, 54764, 59640, 68455, 82146, 95837, 109528, 136910, 164292, 191674, 205365, 273820, 287511, 328584, 383348, 410730, 479185, 547640, 575022, 766696, 821460, 958370, 972061, 1150044, 1437555, 1642920, 1916740, 1944122, 2300088, 2875110, 2916183, 3833480, 3888244, 4860305, 5750220, 5832366, 6804427, 7776488, 9720610, 11500440, 11664732, 13608854, 14580915, 19441220, 20413281, 23329464, 27217708, 29161830, 34022135, 38882440, 40826562, 54435416, 58323660, 68044270, 81653124, 102066405, 116647320, 136088540, 163306248, 204132810, 272177080, 408265620, 816531240]

約数ペア:

[(1, 816531240), (2, 408265620), (3, 272177080), (4, 204132810), (5, 163306248), (6, 136088540), (7, 116647320), (8, 102066405), (10, 81653124), (12, 68044270), (14, 58323660), (15, 54435416), (20, 40826562), (21, 38882440), (24, 34022135), (28, 29161830), (30, 27217708), (35, 23329464), (40, 20413281), (42, 19441220), (56, 14580915), (60, 13608854), (70, 11664732), (71, 11500440), (84, 9720610), (105, 7776488), (120, 6804427), (140, 5832366), (142, 5750220), (168, 4860305), (210, 3888244), (213, 3833480), (280, 2916183), (284, 2875110), (355, 2300088), (420, 1944122), (426, 1916740), (497, 1642920), (568, 1437555), (710, 1150044), (840, 972061), (852, 958370), (994, 821460), (1065, 766696), (1420, 575022), (1491, 547640), (1704, 479185), (1988, 410730), (2130, 383348), (2485, 328584), (2840, 287511), (2982, 273820), (3976, 205365), (4260, 191674), (4970, 164292), (5964, 136910), (7455, 109528), (8520, 95837), (9940, 82146), (11928, 68455), (13691, 59640), (14910, 54764), (19880, 41073), (27382, 29820)]