20171866825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{2843}}^1\times {\mathrm{25801}}^1$

素因数の和:28665

約数の個数: 24

約数和(自身を含む): 27297690336

約数和(自身を除く): 7125823511

約数列:

[1, 5, 11, 25, 55, 275, 2843, 14215, 25801, 31273, 71075, 129005, 156365, 283811, 645025, 781825, 1419055, 7095275, 73352243, 366761215, 806874673, 1833806075, 4034373365, 20171866825]

約数ペア:

[(1, 20171866825), (5, 4034373365), (11, 1833806075), (25, 806874673), (55, 366761215), (275, 73352243), (2843, 7095275), (14215, 1419055), (25801, 781825), (31273, 645025), (71075, 283811), (129005, 156365)]