65317160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 151113600

約数和(自身を除く): 85796440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 109, 142, 211, 218, 284, 355, 422, 436, 545, 568, 710, 844, 872, 1055, 1090, 1420, 1688, 2110, 2180, 2840, 4220, 4360, 7739, 8440, 14981, 15478, 22999, 29962, 30956, 38695, 45998, 59924, 61912, 74905, 77390, 91996, 114995, 119848, 149810, 154780, 183992, 229990, 299620, 309560, 459980, 599240, 919960, 1632929, 3265858, 6531716, 8164645, 13063432, 16329290, 32658580, 65317160]

約数ペア:

[(1, 65317160), (2, 32658580), (4, 16329290), (5, 13063432), (8, 8164645), (10, 6531716), (20, 3265858), (40, 1632929), (71, 919960), (109, 599240), (142, 459980), (211, 309560), (218, 299620), (284, 229990), (355, 183992), (422, 154780), (436, 149810), (545, 119848), (568, 114995), (710, 91996), (844, 77390), (872, 74905), (1055, 61912), (1090, 59924), (1420, 45998), (1688, 38695), (2110, 30956), (2180, 29962), (2840, 22999), (4220, 15478), (4360, 14981), (7739, 8440)]