86987725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 130170240

約数和(自身を除く): 43182515

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 187, 253, 275, 391, 425, 575, 809, 935, 1265, 1955, 4045, 4301, 4675, 6325, 8899, 9775, 13753, 18607, 20225, 21505, 44495, 68765, 93035, 107525, 151283, 204677, 222475, 316319, 343825, 465175, 756415, 1023385, 1581595, 3479509, 3782075, 5116925, 7907975, 17397545, 86987725]

約数ペア:

[(1, 86987725), (5, 17397545), (11, 7907975), (17, 5116925), (23, 3782075), (25, 3479509), (55, 1581595), (85, 1023385), (115, 756415), (187, 465175), (253, 343825), (275, 316319), (391, 222475), (425, 204677), (575, 151283), (809, 107525), (935, 93035), (1265, 68765), (1955, 44495), (4045, 21505), (4301, 20225), (4675, 18607), (6325, 13753), (8899, 9775)]