72433640

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{2113}}^1$

素因数の和:2981

約数の個数: 32

約数和(自身を含む): 163243080

約数和(自身を除く): 90809440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1714, 2113, 3428, 4226, 4285, 6856, 8452, 8570, 10565, 16904, 17140, 21130, 34280, 42260, 84520, 1810841, 3621682, 7243364, 9054205, 14486728, 18108410, 36216820, 72433640]

約数ペア:

[(1, 72433640), (2, 36216820), (4, 18108410), (5, 14486728), (8, 9054205), (10, 7243364), (20, 3621682), (40, 1810841), (857, 84520), (1714, 42260), (2113, 34280), (3428, 21130), (4226, 17140), (4285, 16904), (6856, 10565), (8452, 8570)]