20456890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3067}}^1$

素因数の和:3126

約数の個数: 32

約数和(自身を含む): 39761280

約数和(自身を除く): 19304390

約数列:

[1, 2, 5, 10, 23, 29, 46, 58, 115, 145, 230, 290, 667, 1334, 3067, 3335, 6134, 6670, 15335, 30670, 70541, 88943, 141082, 177886, 352705, 444715, 705410, 889430, 2045689, 4091378, 10228445, 20456890]

約数ペア:

[(1, 20456890), (2, 10228445), (5, 4091378), (10, 2045689), (23, 889430), (29, 705410), (46, 444715), (58, 352705), (115, 177886), (145, 141082), (230, 88943), (290, 70541), (667, 30670), (1334, 15335), (3067, 6670), (3335, 6134)]