20216360

素因数分解:

$2^3\times 5^1\times {\mathrm{505409}}^1$

素因数の和:505420

約数の個数: 16

約数和(自身を含む): 45486900

約数和(自身を除く): 25270540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505409, 1010818, 2021636, 2527045, 4043272, 5054090, 10108180, 20216360]

約数ペア:

[(1, 20216360), (2, 10108180), (4, 5054090), (5, 4043272), (8, 2527045), (10, 2021636), (20, 1010818), (40, 505409)]