20640804

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{21773}}^1$

素因数の和:21859

約数の個数: 24

約数和(自身を含む): 48773760

約数和(自身を除く): 28132956

約数列:

[1, 2, 3, 4, 6, 12, 79, 158, 237, 316, 474, 948, 21773, 43546, 65319, 87092, 130638, 261276, 1720067, 3440134, 5160201, 6880268, 10320402, 20640804]

約数ペア:

[(1, 20640804), (2, 10320402), (3, 6880268), (4, 5160201), (6, 3440134), (12, 1720067), (79, 261276), (158, 130638), (237, 87092), (316, 65319), (474, 43546), (948, 21773)]