80649740

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{11621}}^1$

素因数の和:11977

約数の個数: 24

約数和(自身を含む): 169867152

約数和(自身を除く): 89217412

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 6940, 11621, 23242, 46484, 58105, 116210, 232420, 4032487, 8064974, 16129948, 20162435, 40324870, 80649740]

約数ペア:

[(1, 80649740), (2, 40324870), (4, 20162435), (5, 16129948), (10, 8064974), (20, 4032487), (347, 232420), (694, 116210), (1388, 58105), (1735, 46484), (3470, 23242), (6940, 11621)]