28980080

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3517}}^1$

素因数の和:3633

約数の個数: 40

約数和(自身を含む): 68052192

約数和(自身を除く): 39072112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 3517, 4120, 7034, 8240, 14068, 17585, 28136, 35170, 56272, 70340, 140680, 281360, 362251, 724502, 1449004, 1811255, 2898008, 3622510, 5796016, 7245020, 14490040, 28980080]

約数ペア:

[(1, 28980080), (2, 14490040), (4, 7245020), (5, 5796016), (8, 3622510), (10, 2898008), (16, 1811255), (20, 1449004), (40, 724502), (80, 362251), (103, 281360), (206, 140680), (412, 70340), (515, 56272), (824, 35170), (1030, 28136), (1648, 17585), (2060, 14068), (3517, 8240), (4120, 7034)]