16351640

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{971}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 36916560

約数和(自身を除く): 20564920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 971, 1684, 1942, 2105, 3368, 3884, 4210, 4855, 7768, 8420, 9710, 16840, 19420, 38840, 408791, 817582, 1635164, 2043955, 3270328, 4087910, 8175820, 16351640]

約数ペア:

[(1, 16351640), (2, 8175820), (4, 4087910), (5, 3270328), (8, 2043955), (10, 1635164), (20, 817582), (40, 408791), (421, 38840), (842, 19420), (971, 16840), (1684, 9710), (1942, 8420), (2105, 7768), (3368, 4855), (3884, 4210)]