138532025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4157}}^1$

素因数の和:4241

約数の個数: 24

約数和(自身を含む): 181488384

約数和(自身を除く): 42956359

約数列:

[1, 5, 25, 31, 43, 155, 215, 775, 1075, 1333, 4157, 6665, 20785, 33325, 103925, 128867, 178751, 644335, 893755, 3221675, 4468775, 5541281, 27706405, 138532025]

約数ペア:

[(1, 138532025), (5, 27706405), (25, 5541281), (31, 4468775), (43, 3221675), (155, 893755), (215, 644335), (775, 178751), (1075, 128867), (1333, 103925), (4157, 33325), (6665, 20785)]