56515940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217369}}^1$

素因数の和:217391

約数の個数: 24

約数和(自身を含む): 127813560

約数和(自身を除く): 71297620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 217369, 434738, 869476, 1086845, 2173690, 2825797, 4347380, 5651594, 11303188, 14128985, 28257970, 56515940]

約数ペア:

[(1, 56515940), (2, 28257970), (4, 14128985), (5, 11303188), (10, 5651594), (13, 4347380), (20, 2825797), (26, 2173690), (52, 1086845), (65, 869476), (130, 434738), (260, 217369)]