221246320

素因数分解:

$2^4\times 5^1\times {\mathrm{2765579}}^1$

素因数の和:2765592

約数の個数: 20

約数和(自身を含む): 514397880

約数和(自身を除く): 293151560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2765579, 5531158, 11062316, 13827895, 22124632, 27655790, 44249264, 55311580, 110623160, 221246320]

約数ペア:

[(1, 221246320), (2, 110623160), (4, 55311580), (5, 44249264), (8, 27655790), (10, 22124632), (16, 13827895), (20, 11062316), (40, 5531158), (80, 2765579)]