18113075

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 36

約数和(自身を含む): 25124880

約数和(自身を除く): 7011805

約数列:

[1, 5, 17, 23, 25, 85, 109, 115, 289, 391, 425, 545, 575, 1445, 1853, 1955, 2507, 2725, 6647, 7225, 9265, 9775, 12535, 31501, 33235, 42619, 46325, 62675, 157505, 166175, 213095, 724523, 787525, 1065475, 3622615, 18113075]

約数ペア:

[(1, 18113075), (5, 3622615), (17, 1065475), (23, 787525), (25, 724523), (85, 213095), (109, 166175), (115, 157505), (289, 62675), (391, 46325), (425, 42619), (545, 33235), (575, 31501), (1445, 12535), (1853, 9775), (1955, 9265), (2507, 7225), (2725, 6647)]