19796680

素因数分解:

$2^3\times 5^1\times {\mathrm{494917}}^1$

素因数の和:494928

約数の個数: 16

約数和(自身を含む): 44542620

約数和(自身を除く): 24745940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 494917, 989834, 1979668, 2474585, 3959336, 4949170, 9898340, 19796680]

約数ペア:

[(1, 19796680), (2, 9898340), (4, 4949170), (5, 3959336), (8, 2474585), (10, 1979668), (20, 989834), (40, 494917)]