31820725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2161}}^1$

素因数の和:2221

約数の個数: 24

約数和(自身を含む): 42894080

約数和(自身を除く): 11073355

約数列:

[1, 5, 19, 25, 31, 95, 155, 475, 589, 775, 2161, 2945, 10805, 14725, 41059, 54025, 66991, 205295, 334955, 1026475, 1272829, 1674775, 6364145, 31820725]

約数ペア:

[(1, 31820725), (5, 6364145), (19, 1674775), (25, 1272829), (31, 1026475), (95, 334955), (155, 205295), (475, 66991), (589, 54025), (775, 41059), (2161, 14725), (2945, 10805)]