3943840

素因数分解:

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

素因数の和:329

約数の個数: 36

約数和(自身を含む): 9377046

約数和(自身を除く): 5433206

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 12560, 24649, 25120, 49298, 98596, 123245, 197192, 246490, 394384, 492980, 788768, 985960, 1971920, 3943840]

約数ペア:

[(1, 3943840), (2, 1971920), (4, 985960), (5, 788768), (8, 492980), (10, 394384), (16, 246490), (20, 197192), (32, 123245), (40, 98596), (80, 49298), (157, 25120), (160, 24649), (314, 12560), (628, 6280), (785, 5024), (1256, 3140), (1570, 2512)]