82669940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{557}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 179144784

約数和(自身を除く): 96474844

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 181, 205, 362, 410, 557, 724, 820, 905, 1114, 1810, 2228, 2785, 3620, 5570, 7421, 11140, 14842, 22837, 29684, 37105, 45674, 74210, 91348, 100817, 114185, 148420, 201634, 228370, 403268, 456740, 504085, 1008170, 2016340, 4133497, 8266994, 16533988, 20667485, 41334970, 82669940]

約数ペア:

[(1, 82669940), (2, 41334970), (4, 20667485), (5, 16533988), (10, 8266994), (20, 4133497), (41, 2016340), (82, 1008170), (164, 504085), (181, 456740), (205, 403268), (362, 228370), (410, 201634), (557, 148420), (724, 114185), (820, 100817), (905, 91348), (1114, 74210), (1810, 45674), (2228, 37105), (2785, 29684), (3620, 22837), (5570, 14842), (7421, 11140)]