68352080

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2089}}^1$

素因数の和:2511

約数の個数: 40

約数和(自身を含む): 159383400

約数和(自身を除く): 91031320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 2089, 3272, 4090, 4178, 6544, 8180, 8356, 10445, 16360, 16712, 20890, 32720, 33424, 41780, 83560, 167120, 854401, 1708802, 3417604, 4272005, 6835208, 8544010, 13670416, 17088020, 34176040, 68352080]

約数ペア:

[(1, 68352080), (2, 34176040), (4, 17088020), (5, 13670416), (8, 8544010), (10, 6835208), (16, 4272005), (20, 3417604), (40, 1708802), (80, 854401), (409, 167120), (818, 83560), (1636, 41780), (2045, 33424), (2089, 32720), (3272, 20890), (4090, 16712), (4178, 16360), (6544, 10445), (8180, 8356)]