81901140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1365019}}^1$

素因数の和:1365031

約数の個数: 24

約数和(自身を含む): 229323360

約数和(自身を除く): 147422220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1365019, 2730038, 4095057, 5460076, 6825095, 8190114, 13650190, 16380228, 20475285, 27300380, 40950570, 81901140]

約数ペア:

[(1, 81901140), (2, 40950570), (3, 27300380), (4, 20475285), (5, 16380228), (6, 13650190), (10, 8190114), (12, 6825095), (15, 5460076), (20, 4095057), (30, 2730038), (60, 1365019)]