221301320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2687}}^1$

素因数の和:2798

約数の個数: 64

約数和(自身を含む): 522547200

約数和(自身を除く): 301245880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 284, 290, 355, 568, 580, 710, 1160, 1420, 2059, 2687, 2840, 4118, 5374, 8236, 10295, 10748, 13435, 16472, 20590, 21496, 26870, 41180, 53740, 77923, 82360, 107480, 155846, 190777, 311692, 381554, 389615, 623384, 763108, 779230, 953885, 1526216, 1558460, 1907770, 3116920, 3815540, 5532533, 7631080, 11065066, 22130132, 27662665, 44260264, 55325330, 110650660, 221301320]

約数ペア:

[(1, 221301320), (2, 110650660), (4, 55325330), (5, 44260264), (8, 27662665), (10, 22130132), (20, 11065066), (29, 7631080), (40, 5532533), (58, 3815540), (71, 3116920), (116, 1907770), (142, 1558460), (145, 1526216), (232, 953885), (284, 779230), (290, 763108), (355, 623384), (568, 389615), (580, 381554), (710, 311692), (1160, 190777), (1420, 155846), (2059, 107480), (2687, 82360), (2840, 77923), (4118, 53740), (5374, 41180), (8236, 26870), (10295, 21496), (10748, 20590), (13435, 16472)]