201012220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 429359616

約数和(自身を除く): 228347396

約数列:

[1, 2, 4, 5, 10, 20, 101, 191, 202, 382, 404, 505, 521, 764, 955, 1010, 1042, 1910, 2020, 2084, 2605, 3820, 5210, 10420, 19291, 38582, 52621, 77164, 96455, 99511, 105242, 192910, 199022, 210484, 263105, 385820, 398044, 497555, 526210, 995110, 1052420, 1990220, 10050611, 20101222, 40202444, 50253055, 100506110, 201012220]

約数ペア:

[(1, 201012220), (2, 100506110), (4, 50253055), (5, 40202444), (10, 20101222), (20, 10050611), (101, 1990220), (191, 1052420), (202, 995110), (382, 526210), (404, 497555), (505, 398044), (521, 385820), (764, 263105), (955, 210484), (1010, 199022), (1042, 192910), (1910, 105242), (2020, 99511), (2084, 96455), (2605, 77164), (3820, 52621), (5210, 38582), (10420, 19291)]