64746320

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11399}}^1$

素因数の和:11483

約数の個数: 40

約数和(自身を含む): 152668800

約数和(自身を除く): 87922480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 11399, 22798, 45596, 56995, 91192, 113990, 182384, 227980, 455960, 809329, 911920, 1618658, 3237316, 4046645, 6474632, 8093290, 12949264, 16186580, 32373160, 64746320]

約数ペア:

[(1, 64746320), (2, 32373160), (4, 16186580), (5, 12949264), (8, 8093290), (10, 6474632), (16, 4046645), (20, 3237316), (40, 1618658), (71, 911920), (80, 809329), (142, 455960), (284, 227980), (355, 182384), (568, 113990), (710, 91192), (1136, 56995), (1420, 45596), (2840, 22798), (5680, 11399)]