215906025

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1471}}^1$

素因数の和:1606

約数の個数: 48

約数和(自身を含む): 379658240

約数和(自身を除く): 163752215

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 103, 285, 309, 475, 515, 1425, 1471, 1545, 1957, 2575, 4413, 5871, 7355, 7725, 9785, 22065, 27949, 29355, 36775, 48925, 83847, 110325, 139745, 146775, 151513, 419235, 454539, 698725, 757565, 2096175, 2272695, 2878747, 3787825, 8636241, 11363475, 14393735, 43181205, 71968675, 215906025]

約数ペア:

[(1, 215906025), (3, 71968675), (5, 43181205), (15, 14393735), (19, 11363475), (25, 8636241), (57, 3787825), (75, 2878747), (95, 2272695), (103, 2096175), (285, 757565), (309, 698725), (475, 454539), (515, 419235), (1425, 151513), (1471, 146775), (1545, 139745), (1957, 110325), (2575, 83847), (4413, 48925), (5871, 36775), (7355, 29355), (7725, 27949), (9785, 22065)]