81584240

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9901}}^1$

素因数の和:10017

約数の個数: 40

約数和(自身を含む): 191544288

約数和(自身を除く): 109960048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 9901, 19802, 39604, 49505, 79208, 99010, 158416, 198020, 396040, 792080, 1019803, 2039606, 4079212, 5099015, 8158424, 10198030, 16316848, 20396060, 40792120, 81584240]

約数ペア:

[(1, 81584240), (2, 40792120), (4, 20396060), (5, 16316848), (8, 10198030), (10, 8158424), (16, 5099015), (20, 4079212), (40, 2039606), (80, 1019803), (103, 792080), (206, 396040), (412, 198020), (515, 158416), (824, 99010), (1030, 79208), (1648, 49505), (2060, 39604), (4120, 19802), (8240, 9901)]