221777975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3359}}^1$

素因数の和:3527

約数の個数: 24

約数和(自身を含む): 291648000

約数和(自身を除く): 69870025

約数列:

[1, 5, 19, 25, 95, 139, 475, 695, 2641, 3359, 3475, 13205, 16795, 63821, 66025, 83975, 319105, 466901, 1595525, 2334505, 8871119, 11672525, 44355595, 221777975]

約数ペア:

[(1, 221777975), (5, 44355595), (19, 11672525), (25, 8871119), (95, 2334505), (139, 1595525), (475, 466901), (695, 319105), (2641, 83975), (3359, 66025), (3475, 63821), (13205, 16795)]