72817220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{520123}}^1$

素因数の和:520139

約数の個数: 24

約数和(自身を含む): 174761664

約数和(自身を除く): 101944444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 520123, 1040246, 2080492, 2600615, 3640861, 5201230, 7281722, 10402460, 14563444, 18204305, 36408610, 72817220]

約数ペア:

[(1, 72817220), (2, 36408610), (4, 18204305), (5, 14563444), (7, 10402460), (10, 7281722), (14, 5201230), (20, 3640861), (28, 2600615), (35, 2080492), (70, 1040246), (140, 520123)]