20427020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{859}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 45511200

約数和(自身を除く): 25084180

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 820, 859, 1189, 1718, 2378, 3436, 4295, 4756, 5945, 8590, 11890, 17180, 23780, 24911, 35219, 49822, 70438, 99644, 124555, 140876, 176095, 249110, 352190, 498220, 704380, 1021351, 2042702, 4085404, 5106755, 10213510, 20427020]

約数ペア:

[(1, 20427020), (2, 10213510), (4, 5106755), (5, 4085404), (10, 2042702), (20, 1021351), (29, 704380), (41, 498220), (58, 352190), (82, 249110), (116, 176095), (145, 140876), (164, 124555), (205, 99644), (290, 70438), (410, 49822), (580, 35219), (820, 24911), (859, 23780), (1189, 17180), (1718, 11890), (2378, 8590), (3436, 5945), (4295, 4756)]