181292120

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{4639}}^1$

素因数の和:5627

約数の個数: 32

約数和(自身を含む): 408412800

約数和(自身を除く): 227120680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 3908, 4639, 4885, 7816, 9278, 9770, 18556, 19540, 23195, 37112, 39080, 46390, 92780, 185560, 4532303, 9064606, 18129212, 22661515, 36258424, 45323030, 90646060, 181292120]

約数ペア:

[(1, 181292120), (2, 90646060), (4, 45323030), (5, 36258424), (8, 22661515), (10, 18129212), (20, 9064606), (40, 4532303), (977, 185560), (1954, 92780), (3908, 46390), (4639, 39080), (4885, 37112), (7816, 23195), (9278, 19540), (9770, 18556)]