18180175

素因数分解:

$5^2\times {\mathrm{13}}^3\times {\mathrm{331}}^1$

素因数の和:380

約数の個数: 24

約数和(自身を含む): 24494960

約数和(自身を除く): 6314785

約数列:

[1, 5, 13, 25, 65, 169, 325, 331, 845, 1655, 2197, 4225, 4303, 8275, 10985, 21515, 54925, 55939, 107575, 279695, 727207, 1398475, 3636035, 18180175]

約数ペア:

[(1, 18180175), (5, 3636035), (13, 1398475), (25, 727207), (65, 279695), (169, 107575), (325, 55939), (331, 54925), (845, 21515), (1655, 10985), (2197, 8275), (4225, 4303)]