178125025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3943}}^1$

素因数の和:4105

約数の個数: 24

約数和(自身を含む): 239637440

約数和(自身を除く): 61512415

約数列:

[1, 5, 13, 25, 65, 139, 325, 695, 1807, 3475, 3943, 9035, 19715, 45175, 51259, 98575, 256295, 548077, 1281475, 2740385, 7125001, 13701925, 35625005, 178125025]

約数ペア:

[(1, 178125025), (5, 35625005), (13, 13701925), (25, 7125001), (65, 2740385), (139, 1281475), (325, 548077), (695, 256295), (1807, 98575), (3475, 51259), (3943, 45175), (9035, 19715)]