199929025

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{131101}}^1$

素因数の和:131172

約数の個数: 12

約数和(自身を含む): 251978044

約数和(自身を除く): 52049019

約数列:

[1, 5, 25, 61, 305, 1525, 131101, 655505, 3277525, 7997161, 39985805, 199929025]

約数ペア:

[(1, 199929025), (5, 39985805), (25, 7997161), (61, 3277525), (305, 655505), (1525, 131101)]