80511140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{39857}}^1$

素因数の和:39967

約数の個数: 24

約数和(自身を含む): 170751672

約数和(自身を除く): 90240532

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 39857, 79714, 159428, 199285, 398570, 797140, 4025557, 8051114, 16102228, 20127785, 40255570, 80511140]

約数ペア:

[(1, 80511140), (2, 40255570), (4, 20127785), (5, 16102228), (10, 8051114), (20, 4025557), (101, 797140), (202, 398570), (404, 199285), (505, 159428), (1010, 79714), (2020, 39857)]