18975080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12821}}^1$

素因数の和:12869

約数の個数: 32

約数和(自身を含む): 43851240

約数和(自身を除く): 24876160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12821, 25642, 51284, 64105, 102568, 128210, 256420, 474377, 512840, 948754, 1897508, 2371885, 3795016, 4743770, 9487540, 18975080]

約数ペア:

[(1, 18975080), (2, 9487540), (4, 4743770), (5, 3795016), (8, 2371885), (10, 1897508), (20, 948754), (37, 512840), (40, 474377), (74, 256420), (148, 128210), (185, 102568), (296, 64105), (370, 51284), (740, 25642), (1480, 12821)]