25915180

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3331}}^1$

素因数の和:3729

約数の個数: 24

約数和(自身を含む): 54578160

約数和(自身を除く): 28662980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3331, 3890, 6662, 7780, 13324, 16655, 33310, 66620, 1295759, 2591518, 5183036, 6478795, 12957590, 25915180]

約数ペア:

[(1, 25915180), (2, 12957590), (4, 6478795), (5, 5183036), (10, 2591518), (20, 1295759), (389, 66620), (778, 33310), (1556, 16655), (1945, 13324), (3331, 7780), (3890, 6662)]