85430980

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{2719}}^1$

素因数の和:4299

約数の個数: 24

約数和(自身を含む): 179585280

約数和(自身を除く): 94154300

約数列:

[1, 2, 4, 5, 10, 20, 1571, 2719, 3142, 5438, 6284, 7855, 10876, 13595, 15710, 27190, 31420, 54380, 4271549, 8543098, 17086196, 21357745, 42715490, 85430980]

約数ペア:

[(1, 85430980), (2, 42715490), (4, 21357745), (5, 17086196), (10, 8543098), (20, 4271549), (1571, 54380), (2719, 31420), (3142, 27190), (5438, 15710), (6284, 13595), (7855, 10876)]