20460280

素因数分解:

$2^3\times 5^1\times {\mathrm{511507}}^1$

素因数の和:511518

約数の個数: 16

約数和(自身を含む): 46035720

約数和(自身を除く): 25575440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511507, 1023014, 2046028, 2557535, 4092056, 5115070, 10230140, 20460280]

約数ペア:

[(1, 20460280), (2, 10230140), (4, 5115070), (5, 4092056), (8, 2557535), (10, 2046028), (20, 1023014), (40, 511507)]