51725180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{198943}}^1$

素因数の和:198965

約数の個数: 24

約数和(自身を含む): 116979072

約数和(自身を除く): 65253892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 198943, 397886, 795772, 994715, 1989430, 2586259, 3978860, 5172518, 10345036, 12931295, 25862590, 51725180]

約数ペア:

[(1, 51725180), (2, 25862590), (4, 12931295), (5, 10345036), (10, 5172518), (13, 3978860), (20, 2586259), (26, 1989430), (52, 994715), (65, 795772), (130, 397886), (260, 198943)]