20765931140

素因数分解:

$2^2\times 5^1\times {\mathrm{47387}}^1\times {\mathrm{21911}}^1$

素因数の和:69307

約数の個数: 24

約数和(自身を含む): 43611365952

約数和(自身を除く): 22845434812

約数列:

[1, 2, 4, 5, 10, 20, 21911, 43822, 47387, 87644, 94774, 109555, 189548, 219110, 236935, 438220, 473870, 947740, 1038296557, 2076593114, 4153186228, 5191482785, 10382965570, 20765931140]

約数ペア:

[(1, 20765931140), (2, 10382965570), (4, 5191482785), (5, 4153186228), (10, 2076593114), (20, 1038296557), (21911, 947740), (43822, 473870), (47387, 438220), (87644, 236935), (94774, 219110), (109555, 189548)]