20003525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 26141184

約数和(自身を除く): 6137659

約数列:

[1, 5, 25, 31, 53, 155, 265, 487, 775, 1325, 1643, 2435, 8215, 12175, 15097, 25811, 41075, 75485, 129055, 377425, 645275, 800141, 4000705, 20003525]

約数ペア:

[(1, 20003525), (5, 4000705), (25, 800141), (31, 645275), (53, 377425), (155, 129055), (265, 75485), (487, 41075), (775, 25811), (1325, 15097), (1643, 12175), (2435, 8215)]