18131475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{457}}^1$

素因数の和:516

約数の個数: 36

約数和(自身を含む): 31405976

約数和(自身を除く): 13274501

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 457, 529, 575, 1371, 1587, 1725, 2285, 2645, 6855, 7935, 10511, 11425, 13225, 31533, 34275, 39675, 52555, 157665, 241753, 262775, 725259, 788325, 1208765, 3626295, 6043825, 18131475]

約数ペア:

[(1, 18131475), (3, 6043825), (5, 3626295), (15, 1208765), (23, 788325), (25, 725259), (69, 262775), (75, 241753), (115, 157665), (345, 52555), (457, 39675), (529, 34275), (575, 31533), (1371, 13225), (1587, 11425), (1725, 10511), (2285, 7935), (2645, 6855)]