9981220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17209}}^1$

素因数の和:17247

約数の個数: 24

約数和(自身を含む): 21684600

約数和(自身を除く): 11703380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 17209, 34418, 68836, 86045, 172090, 344180, 499061, 998122, 1996244, 2495305, 4990610, 9981220]

約数ペア:

[(1, 9981220), (2, 4990610), (4, 2495305), (5, 1996244), (10, 998122), (20, 499061), (29, 344180), (58, 172090), (116, 86045), (145, 68836), (290, 34418), (580, 17209)]