8790275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 13061664

約数和(自身を除く): 4271389

約数列:

[1, 5, 13, 17, 25, 37, 43, 65, 85, 185, 215, 221, 325, 425, 481, 559, 629, 731, 925, 1075, 1105, 1591, 2405, 2795, 3145, 3655, 5525, 7955, 8177, 9503, 12025, 13975, 15725, 18275, 20683, 27047, 39775, 40885, 47515, 103415, 135235, 204425, 237575, 351611, 517075, 676175, 1758055, 8790275]

約数ペア:

[(1, 8790275), (5, 1758055), (13, 676175), (17, 517075), (25, 351611), (37, 237575), (43, 204425), (65, 135235), (85, 103415), (185, 47515), (215, 40885), (221, 39775), (325, 27047), (425, 20683), (481, 18275), (559, 15725), (629, 13975), (731, 12025), (925, 9503), (1075, 8177), (1105, 7955), (1591, 5525), (2405, 3655), (2795, 3145)]