520001872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{2500009}}^1$

素因数の和:2500030

約数の個数: 20

約数和(自身を含む): 1085004340

約数和(自身を除く): 565002468

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 2500009, 5000018, 10000036, 20000072, 32500117, 40000144, 65000234, 130000468, 260000936, 520001872]

約数ペア:

[(1, 520001872), (2, 260000936), (4, 130000468), (8, 65000234), (13, 40000144), (16, 32500117), (26, 20000072), (52, 10000036), (104, 5000018), (208, 2500009)]