19384580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15889}}^1$

素因数の和:15959

約数の個数: 24

約数和(自身を含む): 41377560

約数和(自身を除く): 21992980

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15889, 31778, 63556, 79445, 158890, 317780, 969229, 1938458, 3876916, 4846145, 9692290, 19384580]

約数ペア:

[(1, 19384580), (2, 9692290), (4, 4846145), (5, 3876916), (10, 1938458), (20, 969229), (61, 317780), (122, 158890), (244, 79445), (305, 63556), (610, 31778), (1220, 15889)]