20109752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10177}}^1$

素因数の和:10215

約数の個数: 32

約数和(自身を含む): 42747600

約数和(自身を除く): 22637848

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10177, 20354, 40708, 81416, 132301, 193363, 264602, 386726, 529204, 773452, 1058408, 1546904, 2513719, 5027438, 10054876, 20109752]

約数ペア:

[(1, 20109752), (2, 10054876), (4, 5027438), (8, 2513719), (13, 1546904), (19, 1058408), (26, 773452), (38, 529204), (52, 386726), (76, 264602), (104, 193363), (152, 132301), (247, 81416), (494, 40708), (988, 20354), (1976, 10177)]