164419960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{877}}^1$

素因数の和:1040

約数の個数: 64

約数和(自身を含む): 382456800

約数和(自身を除く): 218036840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 109, 172, 215, 218, 344, 430, 436, 545, 860, 872, 877, 1090, 1720, 1754, 2180, 3508, 4360, 4385, 4687, 7016, 8770, 9374, 17540, 18748, 23435, 35080, 37496, 37711, 46870, 75422, 93740, 95593, 150844, 187480, 188555, 191186, 301688, 377110, 382372, 477965, 754220, 764744, 955930, 1508440, 1911860, 3823720, 4110499, 8220998, 16441996, 20552495, 32883992, 41104990, 82209980, 164419960]

約数ペア:

[(1, 164419960), (2, 82209980), (4, 41104990), (5, 32883992), (8, 20552495), (10, 16441996), (20, 8220998), (40, 4110499), (43, 3823720), (86, 1911860), (109, 1508440), (172, 955930), (215, 764744), (218, 754220), (344, 477965), (430, 382372), (436, 377110), (545, 301688), (860, 191186), (872, 188555), (877, 187480), (1090, 150844), (1720, 95593), (1754, 93740), (2180, 75422), (3508, 46870), (4360, 37711), (4385, 37496), (4687, 35080), (7016, 23435), (8770, 18748), (9374, 17540)]