56728540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257857}}^1$

素因数の和:257877

約数の個数: 24

約数和(自身を含む): 129960432

約数和(自身を除く): 73231892

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257857, 515714, 1031428, 1289285, 2578570, 2836427, 5157140, 5672854, 11345708, 14182135, 28364270, 56728540]

約数ペア:

[(1, 56728540), (2, 28364270), (4, 14182135), (5, 11345708), (10, 5672854), (11, 5157140), (20, 2836427), (22, 2578570), (44, 1289285), (55, 1031428), (110, 515714), (220, 257857)]