40391416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20441}}^1$

素因数の和:20479

約数の個数: 32

約数和(自身を含む): 85856400

約数和(自身を除く): 45464984

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 20441, 40882, 81764, 163528, 265733, 388379, 531466, 776758, 1062932, 1553516, 2125864, 3107032, 5048927, 10097854, 20195708, 40391416]

約数ペア:

[(1, 40391416), (2, 20195708), (4, 10097854), (8, 5048927), (13, 3107032), (19, 2125864), (26, 1553516), (38, 1062932), (52, 776758), (76, 531466), (104, 388379), (152, 265733), (247, 163528), (494, 81764), (988, 40882), (1976, 20441)]