71728405

素因数分解:

$5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{2137}}^1$

素因数の和:2293

約数の個数: 24

約数和(自身を含む): 100905048

約数和(自身を除く): 29176643

約数列:

[1, 5, 7, 35, 49, 137, 245, 685, 959, 2137, 4795, 6713, 10685, 14959, 33565, 74795, 104713, 292769, 523565, 1463845, 2049383, 10246915, 14345681, 71728405]

約数ペア:

[(1, 71728405), (5, 14345681), (7, 10246915), (35, 2049383), (49, 1463845), (137, 523565), (245, 292769), (685, 104713), (959, 74795), (2137, 33565), (4795, 14959), (6713, 10685)]