16471760

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1999}}^1$

素因数の和:2115

約数の個数: 40

約数和(自身を含む): 38688000

約数和(自身を除く): 22216240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 1999, 2060, 3998, 4120, 7996, 8240, 9995, 15992, 19990, 31984, 39980, 79960, 159920, 205897, 411794, 823588, 1029485, 1647176, 2058970, 3294352, 4117940, 8235880, 16471760]

約数ペア:

[(1, 16471760), (2, 8235880), (4, 4117940), (5, 3294352), (8, 2058970), (10, 1647176), (16, 1029485), (20, 823588), (40, 411794), (80, 205897), (103, 159920), (206, 79960), (412, 39980), (515, 31984), (824, 19990), (1030, 15992), (1648, 9995), (1999, 8240), (2060, 7996), (3998, 4120)]