7980456920

素因数分解:

$2^3\times 5^1\times {\mathrm{13339}}^1\times {\mathrm{14957}}^1$

素因数の和:28307

約数の個数: 32

約数和(自身を含む): 17958574800

約数和(自身を除く): 9978117880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13339, 14957, 26678, 29914, 53356, 59828, 66695, 74785, 106712, 119656, 133390, 149570, 266780, 299140, 533560, 598280, 199511423, 399022846, 798045692, 997557115, 1596091384, 1995114230, 3990228460, 7980456920]

約数ペア:

[(1, 7980456920), (2, 3990228460), (4, 1995114230), (5, 1596091384), (8, 997557115), (10, 798045692), (20, 399022846), (40, 199511423), (13339, 598280), (14957, 533560), (26678, 299140), (29914, 266780), (53356, 149570), (59828, 133390), (66695, 119656), (74785, 106712)]