28915475

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 37028880

約数和(自身を除く): 8113405

約数列:

[1, 5, 25, 53, 139, 157, 265, 695, 785, 1325, 3475, 3925, 7367, 8321, 21823, 36835, 41605, 109115, 184175, 208025, 545575, 1156619, 5783095, 28915475]

約数ペア:

[(1, 28915475), (5, 5783095), (25, 1156619), (53, 545575), (139, 208025), (157, 184175), (265, 109115), (695, 41605), (785, 36835), (1325, 21823), (3475, 8321), (3925, 7367)]