9980275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1021}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 13686624

約数和(自身を除く): 3706349

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1021, 1955, 5105, 9775, 17357, 23483, 25525, 86785, 117415, 399211, 433925, 587075, 1996055, 9980275]

約数ペア:

[(1, 9980275), (5, 1996055), (17, 587075), (23, 433925), (25, 399211), (85, 117415), (115, 86785), (391, 25525), (425, 23483), (575, 17357), (1021, 9775), (1955, 5105)]