81515408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23053}}^1$

素因数の和:23091

約数の個数: 40

約数和(自身を含む): 180097848

約数和(自身を除く): 98582440

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 23053, 46106, 92212, 184424, 299689, 368848, 391901, 599378, 783802, 1198756, 1567604, 2397512, 3135208, 4795024, 5094713, 6270416, 10189426, 20378852, 40757704, 81515408]

約数ペア:

[(1, 81515408), (2, 40757704), (4, 20378852), (8, 10189426), (13, 6270416), (16, 5094713), (17, 4795024), (26, 3135208), (34, 2397512), (52, 1567604), (68, 1198756), (104, 783802), (136, 599378), (208, 391901), (221, 368848), (272, 299689), (442, 184424), (884, 92212), (1768, 46106), (3536, 23053)]