20239520920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3104221}}^1$

素因数の和:3104395

約数の個数: 32

約数和(自身を含む): 45818316720

約数和(自身を除く): 25578795800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 3104221, 6208442, 12416884, 15521105, 24833768, 31042210, 62084420, 124168840, 505988023, 1011976046, 2023952092, 2529940115, 4047904184, 5059880230, 10119760460, 20239520920]

約数ペア:

[(1, 20239520920), (2, 10119760460), (4, 5059880230), (5, 4047904184), (8, 2529940115), (10, 2023952092), (20, 1011976046), (40, 505988023), (163, 124168840), (326, 62084420), (652, 31042210), (815, 24833768), (1304, 15521105), (1630, 12416884), (3260, 6208442), (6520, 3104221)]