16867825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 24748416

約数和(自身を除く): 7880591

約数列:

[1, 5, 13, 17, 25, 43, 65, 71, 85, 215, 221, 325, 355, 425, 559, 731, 923, 1075, 1105, 1207, 1775, 2795, 3053, 3655, 4615, 5525, 6035, 9503, 13975, 15265, 15691, 18275, 23075, 30175, 39689, 47515, 51901, 76325, 78455, 198445, 237575, 259505, 392275, 674713, 992225, 1297525, 3373565, 16867825]

約数ペア:

[(1, 16867825), (5, 3373565), (13, 1297525), (17, 992225), (25, 674713), (43, 392275), (65, 259505), (71, 237575), (85, 198445), (215, 78455), (221, 76325), (325, 51901), (355, 47515), (425, 39689), (559, 30175), (731, 23075), (923, 18275), (1075, 15691), (1105, 15265), (1207, 13975), (1775, 9503), (2795, 6035), (3053, 5525), (3655, 4615)]