20280130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2137}}^1$

素因数の和:2230

約数の個数: 32

約数和(自身を含む): 39869424

約数和(自身を除く): 19589294

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2137, 4274, 4745, 9490, 10685, 21370, 27781, 55562, 138905, 156001, 277810, 312002, 780005, 1560010, 2028013, 4056026, 10140065, 20280130]

約数ペア:

[(1, 20280130), (2, 10140065), (5, 4056026), (10, 2028013), (13, 1560010), (26, 780005), (65, 312002), (73, 277810), (130, 156001), (146, 138905), (365, 55562), (730, 27781), (949, 21370), (1898, 10685), (2137, 9490), (4274, 4745)]