28278740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2767}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 68823552

約数和(自身を除く): 40544812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 2767, 5110, 5534, 10220, 11068, 13835, 19369, 27670, 38738, 55340, 77476, 96845, 193690, 201991, 387380, 403982, 807964, 1009955, 1413937, 2019910, 2827874, 4039820, 5655748, 7069685, 14139370, 28278740]

約数ペア:

[(1, 28278740), (2, 14139370), (4, 7069685), (5, 5655748), (7, 4039820), (10, 2827874), (14, 2019910), (20, 1413937), (28, 1009955), (35, 807964), (70, 403982), (73, 387380), (140, 201991), (146, 193690), (292, 96845), (365, 77476), (511, 55340), (730, 38738), (1022, 27670), (1460, 19369), (2044, 13835), (2555, 11068), (2767, 10220), (5110, 5534)]