19209640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6079}}^1$

素因数の和:6169

約数の個数: 32

約数和(自身を含む): 43776000

約数和(自身を除く): 24566360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6079, 12158, 24316, 30395, 48632, 60790, 121580, 243160, 480241, 960482, 1920964, 2401205, 3841928, 4802410, 9604820, 19209640]

約数ペア:

[(1, 19209640), (2, 9604820), (4, 4802410), (5, 3841928), (8, 2401205), (10, 1920964), (20, 960482), (40, 480241), (79, 243160), (158, 121580), (316, 60790), (395, 48632), (632, 30395), (790, 24316), (1580, 12158), (3160, 6079)]