18666175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 25534080

約数和(自身を除く): 6867905

約数列:

[1, 5, 11, 25, 55, 103, 275, 515, 659, 1133, 2575, 3295, 5665, 7249, 16475, 28325, 36245, 67877, 181225, 339385, 746647, 1696925, 3733235, 18666175]

約数ペア:

[(1, 18666175), (5, 3733235), (11, 1696925), (25, 746647), (55, 339385), (103, 181225), (275, 67877), (515, 36245), (659, 28325), (1133, 16475), (2575, 7249), (3295, 5665)]