64778680

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{4273}}^1$

素因数の和:4663

約数の個数: 32

約数和(自身を含む): 146170800

約数和(自身を除く): 81392120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 4273, 7580, 8546, 15160, 17092, 21365, 34184, 42730, 85460, 170920, 1619467, 3238934, 6477868, 8097335, 12955736, 16194670, 32389340, 64778680]

約数ペア:

[(1, 64778680), (2, 32389340), (4, 16194670), (5, 12955736), (8, 8097335), (10, 6477868), (20, 3238934), (40, 1619467), (379, 170920), (758, 85460), (1516, 42730), (1895, 34184), (3032, 21365), (3790, 17092), (4273, 15160), (7580, 8546)]