63911920

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1601}}^1$

素因数の和:2113

約数の個数: 40

約数和(自身を含む): 148986000

約数和(自身を除く): 85074080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1601, 1996, 2495, 3202, 3992, 4990, 6404, 7984, 8005, 9980, 12808, 16010, 19960, 25616, 32020, 39920, 64040, 128080, 798899, 1597798, 3195596, 3994495, 6391192, 7988990, 12782384, 15977980, 31955960, 63911920]

約数ペア:

[(1, 63911920), (2, 31955960), (4, 15977980), (5, 12782384), (8, 7988990), (10, 6391192), (16, 3994495), (20, 3195596), (40, 1597798), (80, 798899), (499, 128080), (998, 64040), (1601, 39920), (1996, 32020), (2495, 25616), (3202, 19960), (3992, 16010), (4990, 12808), (6404, 9980), (7984, 8005)]