20354112880

素因数分解:

$2^4\times 5^1\times {\mathrm{254426411}}^1$

素因数の和:254426424

約数の個数: 20

約数和(自身を含む): 47323312632

約数和(自身を除く): 26969199752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254426411, 508852822, 1017705644, 1272132055, 2035411288, 2544264110, 4070822576, 5088528220, 10177056440, 20354112880]

約数ペア:

[(1, 20354112880), (2, 10177056440), (4, 5088528220), (5, 4070822576), (8, 2544264110), (10, 2035411288), (16, 1272132055), (20, 1017705644), (40, 508852822), (80, 254426411)]