38967820

素因数分解:

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

素因数の和:402

約数の個数: 36

約数和(自身を含む): 83083392

約数和(自身を除く): 44115572

約数列:

[1, 2, 4, 5, 10, 20, 101, 191, 202, 382, 404, 505, 764, 955, 1010, 1910, 2020, 3820, 10201, 19291, 20402, 38582, 40804, 51005, 77164, 96455, 102010, 192910, 204020, 385820, 1948391, 3896782, 7793564, 9741955, 19483910, 38967820]

約数ペア:

[(1, 38967820), (2, 19483910), (4, 9741955), (5, 7793564), (10, 3896782), (20, 1948391), (101, 385820), (191, 204020), (202, 192910), (382, 102010), (404, 96455), (505, 77164), (764, 51005), (955, 40804), (1010, 38582), (1910, 20402), (2020, 19291), (3820, 10201)]