128579675

素因数分解:

$5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2441}}^1$

素因数の和:2508

約数の個数: 36

約数和(自身を含む): 189860616

約数和(自身を除く): 61280941

約数列:

[1, 5, 7, 25, 35, 43, 49, 175, 215, 245, 301, 1075, 1225, 1505, 2107, 2441, 7525, 10535, 12205, 17087, 52675, 61025, 85435, 104963, 119609, 427175, 524815, 598045, 734741, 2624075, 2990225, 3673705, 5143187, 18368525, 25715935, 128579675]

約数ペア:

[(1, 128579675), (5, 25715935), (7, 18368525), (25, 5143187), (35, 3673705), (43, 2990225), (49, 2624075), (175, 734741), (215, 598045), (245, 524815), (301, 427175), (1075, 119609), (1225, 104963), (1505, 85435), (2107, 61025), (2441, 52675), (7525, 17087), (10535, 12205)]