28368925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2129}}^1$

素因数の和:2193

約数の個数: 24

約数和(自身を含む): 38825640

約数和(自身を除く): 10456715

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 533, 1025, 2129, 2665, 10645, 13325, 27677, 53225, 87289, 138385, 436445, 691925, 1134757, 2182225, 5673785, 28368925]

約数ペア:

[(1, 28368925), (5, 5673785), (13, 2182225), (25, 1134757), (41, 691925), (65, 436445), (205, 138385), (325, 87289), (533, 53225), (1025, 27677), (2129, 13325), (2665, 10645)]