42956875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 61405344

約数和(自身を除く): 18448469

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 311, 325, 425, 625, 1105, 1555, 1625, 2125, 4043, 5287, 5525, 7775, 8125, 10625, 20215, 26435, 27625, 38875, 68731, 101075, 132175, 138125, 194375, 343655, 505375, 660875, 1718275, 2526875, 3304375, 8591375, 42956875]

約数ペア:

[(1, 42956875), (5, 8591375), (13, 3304375), (17, 2526875), (25, 1718275), (65, 660875), (85, 505375), (125, 343655), (221, 194375), (311, 138125), (325, 132175), (425, 101075), (625, 68731), (1105, 38875), (1555, 27625), (1625, 26435), (2125, 20215), (4043, 10625), (5287, 8125), (5525, 7775)]