80640108

素因数分解:

$2^2\times 3^2\times {\mathrm{2240003}}^1$

素因数の和:2240013

約数の個数: 18

約数和(自身を含む): 203840364

約数和(自身を除く): 123200256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 2240003, 4480006, 6720009, 8960012, 13440018, 20160027, 26880036, 40320054, 80640108]

約数ペア:

[(1, 80640108), (2, 40320054), (3, 26880036), (4, 20160027), (6, 13440018), (9, 8960012), (12, 6720009), (18, 4480006), (36, 2240003)]