258287710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{3229}}^1$

素因数の和:3676

約数の個数: 32

約数和(自身を含む): 490701600

約数和(自身を除く): 232413890

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 421, 842, 2105, 3229, 4210, 6458, 7999, 15998, 16145, 32290, 39995, 61351, 79990, 122702, 306755, 613510, 1359409, 2718818, 6797045, 13594090, 25828771, 51657542, 129143855, 258287710]

約数ペア:

[(1, 258287710), (2, 129143855), (5, 51657542), (10, 25828771), (19, 13594090), (38, 6797045), (95, 2718818), (190, 1359409), (421, 613510), (842, 306755), (2105, 122702), (3229, 79990), (4210, 61351), (6458, 39995), (7999, 32290), (15998, 16145)]