19995350

素因数分解:

$2^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3539}}^1$

素因数の和:3664

約数の個数: 24

約数和(自身を含む): 37531080

約数和(自身を除く): 17535730

約数列:

[1, 2, 5, 10, 25, 50, 113, 226, 565, 1130, 2825, 3539, 5650, 7078, 17695, 35390, 88475, 176950, 399907, 799814, 1999535, 3999070, 9997675, 19995350]

約数ペア:

[(1, 19995350), (2, 9997675), (5, 3999070), (10, 1999535), (25, 799814), (50, 399907), (113, 176950), (226, 88475), (565, 35390), (1130, 17695), (2825, 7078), (3539, 5650)]