15406975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 20088000

約数和(自身を除く): 4681025

約数列:

[1, 5, 25, 29, 79, 145, 269, 395, 725, 1345, 1975, 2291, 6725, 7801, 11455, 21251, 39005, 57275, 106255, 195025, 531275, 616279, 3081395, 15406975]

約数ペア:

[(1, 15406975), (5, 3081395), (25, 616279), (29, 531275), (79, 195025), (145, 106255), (269, 57275), (395, 39005), (725, 21251), (1345, 11455), (1975, 7801), (2291, 6725)]