628104860

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{2237}}^1$

素因数の和:2486

約数の個数: 48

約数和(自身を含む): 1342262880

約数和(自身を除く): 714158020

約数列:

[1, 2, 4, 5, 10, 20, 101, 139, 202, 278, 404, 505, 556, 695, 1010, 1390, 2020, 2237, 2780, 4474, 8948, 11185, 14039, 22370, 28078, 44740, 56156, 70195, 140390, 225937, 280780, 310943, 451874, 621886, 903748, 1129685, 1243772, 1554715, 2259370, 3109430, 4518740, 6218860, 31405243, 62810486, 125620972, 157026215, 314052430, 628104860]

約数ペア:

[(1, 628104860), (2, 314052430), (4, 157026215), (5, 125620972), (10, 62810486), (20, 31405243), (101, 6218860), (139, 4518740), (202, 3109430), (278, 2259370), (404, 1554715), (505, 1243772), (556, 1129685), (695, 903748), (1010, 621886), (1390, 451874), (2020, 310943), (2237, 280780), (2780, 225937), (4474, 140390), (8948, 70195), (11185, 56156), (14039, 44740), (22370, 28078)]