8142620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 17992800

約数和(自身を除く): 9850180

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 101, 116, 139, 145, 202, 278, 290, 404, 505, 556, 580, 695, 1010, 1390, 2020, 2780, 2929, 4031, 5858, 8062, 11716, 14039, 14645, 16124, 20155, 28078, 29290, 40310, 56156, 58580, 70195, 80620, 140390, 280780, 407131, 814262, 1628524, 2035655, 4071310, 8142620]

約数ペア:

[(1, 8142620), (2, 4071310), (4, 2035655), (5, 1628524), (10, 814262), (20, 407131), (29, 280780), (58, 140390), (101, 80620), (116, 70195), (139, 58580), (145, 56156), (202, 40310), (278, 29290), (290, 28078), (404, 20155), (505, 16124), (556, 14645), (580, 14039), (695, 11716), (1010, 8062), (1390, 5858), (2020, 4031), (2780, 2929)]