81515140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{582251}}^1$

素因数の和:582267

約数の個数: 24

約数和(自身を含む): 195636672

約数和(自身を除く): 114121532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 582251, 1164502, 2329004, 2911255, 4075757, 5822510, 8151514, 11645020, 16303028, 20378785, 40757570, 81515140]

約数ペア:

[(1, 81515140), (2, 40757570), (4, 20378785), (5, 16303028), (7, 11645020), (10, 8151514), (14, 5822510), (20, 4075757), (28, 2911255), (35, 2329004), (70, 1164502), (140, 582251)]