20057360

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{613}}^1$

素因数の和:1035

約数の個数: 40

約数和(自身を含む): 46823640

約数和(自身を除く): 26766280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 613, 818, 1226, 1636, 2045, 2452, 3065, 3272, 4090, 4904, 6130, 6544, 8180, 9808, 12260, 16360, 24520, 32720, 49040, 250717, 501434, 1002868, 1253585, 2005736, 2507170, 4011472, 5014340, 10028680, 20057360]

約数ペア:

[(1, 20057360), (2, 10028680), (4, 5014340), (5, 4011472), (8, 2507170), (10, 2005736), (16, 1253585), (20, 1002868), (40, 501434), (80, 250717), (409, 49040), (613, 32720), (818, 24520), (1226, 16360), (1636, 12260), (2045, 9808), (2452, 8180), (3065, 6544), (3272, 6130), (4090, 4904)]