31080025

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{263}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 40265280

約数和(自身を除く): 9185255

約数列:

[1, 5, 25, 29, 145, 163, 263, 725, 815, 1315, 4075, 4727, 6575, 7627, 23635, 38135, 42869, 118175, 190675, 214345, 1071725, 1243201, 6216005, 31080025]

約数ペア:

[(1, 31080025), (5, 6216005), (25, 1243201), (29, 1071725), (145, 214345), (163, 190675), (263, 118175), (725, 42869), (815, 38135), (1315, 23635), (4075, 7627), (4727, 6575)]