18860725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 25435872

約数和(自身を除く): 6575147

約数列:

[1, 5, 13, 25, 65, 131, 325, 443, 655, 1703, 2215, 3275, 5759, 8515, 11075, 28795, 42575, 58033, 143975, 290165, 754429, 1450825, 3772145, 18860725]

約数ペア:

[(1, 18860725), (5, 3772145), (13, 1450825), (25, 754429), (65, 290165), (131, 143975), (325, 58033), (443, 42575), (655, 28795), (1703, 11075), (2215, 8515), (3275, 5759)]