30397960

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2957}}^1$

素因数の和:3225

約数の個数: 32

約数和(自身を含む): 68684760

約数和(自身を除く): 38286800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 2957, 5140, 5914, 10280, 11828, 14785, 23656, 29570, 59140, 118280, 759949, 1519898, 3039796, 3799745, 6079592, 7599490, 15198980, 30397960]

約数ペア:

[(1, 30397960), (2, 15198980), (4, 7599490), (5, 6079592), (8, 3799745), (10, 3039796), (20, 1519898), (40, 759949), (257, 118280), (514, 59140), (1028, 29570), (1285, 23656), (2056, 14785), (2570, 11828), (2957, 10280), (5140, 5914)]