20218088888

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{3851}}^1\times {\mathrm{13963}}^1$

素因数の和:17867

約数の個数: 32

約数和(自身を含む): 38728316160

約数和(自身を除く): 18510227272

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 3851, 7702, 13963, 15404, 27926, 30808, 55852, 111704, 180997, 361994, 656261, 723988, 1312522, 1447976, 2625044, 5250088, 53771513, 107543026, 215086052, 430172104, 2527261111, 5054522222, 10109044444, 20218088888]

約数ペア:

[(1, 20218088888), (2, 10109044444), (4, 5054522222), (8, 2527261111), (47, 430172104), (94, 215086052), (188, 107543026), (376, 53771513), (3851, 5250088), (7702, 2625044), (13963, 1447976), (15404, 1312522), (27926, 723988), (30808, 656261), (55852, 361994), (111704, 180997)]