7500020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{467}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 17454528

約数和(自身を除く): 9954508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 467, 730, 803, 934, 1460, 1606, 1868, 2335, 3212, 4015, 4670, 5137, 8030, 9340, 10274, 16060, 20548, 25685, 34091, 51370, 68182, 102740, 136364, 170455, 340910, 375001, 681820, 750002, 1500004, 1875005, 3750010, 7500020]

約数ペア:

[(1, 7500020), (2, 3750010), (4, 1875005), (5, 1500004), (10, 750002), (11, 681820), (20, 375001), (22, 340910), (44, 170455), (55, 136364), (73, 102740), (110, 68182), (146, 51370), (220, 34091), (292, 25685), (365, 20548), (467, 16060), (730, 10274), (803, 9340), (934, 8030), (1460, 5137), (1606, 4670), (1868, 4015), (2335, 3212)]