172864025

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{307}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 218152704

約数和(自身を除く): 45288679

約数列:

[1, 5, 25, 101, 223, 307, 505, 1115, 1535, 2525, 5575, 7675, 22523, 31007, 68461, 112615, 155035, 342305, 563075, 775175, 1711525, 6914561, 34572805, 172864025]

約数ペア:

[(1, 172864025), (5, 34572805), (25, 6914561), (101, 1711525), (223, 775175), (307, 563075), (505, 342305), (1115, 155035), (1535, 112615), (2525, 68461), (5575, 31007), (7675, 22523)]