30000020

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{2693}}^1$

素因数の和:3259

約数の個数: 24

約数和(自身を含む): 63136584

約数和(自身を除く): 33136564

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2693, 2785, 5386, 5570, 10772, 11140, 13465, 26930, 53860, 1500001, 3000002, 6000004, 7500005, 15000010, 30000020]

約数ペア:

[(1, 30000020), (2, 15000010), (4, 7500005), (5, 6000004), (10, 3000002), (20, 1500001), (557, 53860), (1114, 26930), (2228, 13465), (2693, 11140), (2785, 10772), (5386, 5570)]