1971920

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^2$

素因数の和:327

約数の個数: 30

約数和(自身を含む): 4614102

約数和(自身を除く): 2642182

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 24649, 49298, 98596, 123245, 197192, 246490, 394384, 492980, 985960, 1971920]

約数ペア:

[(1, 1971920), (2, 985960), (4, 492980), (5, 394384), (8, 246490), (10, 197192), (16, 123245), (20, 98596), (40, 49298), (80, 24649), (157, 12560), (314, 6280), (628, 3140), (785, 2512), (1256, 1570)]