71167240

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2767}}^1$

素因数の和:3421

約数の個数: 32

約数和(自身を含む): 160433280

約数和(自身を除く): 89266040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 2767, 3215, 5144, 5534, 6430, 11068, 12860, 13835, 22136, 25720, 27670, 55340, 110680, 1779181, 3558362, 7116724, 8895905, 14233448, 17791810, 35583620, 71167240]

約数ペア:

[(1, 71167240), (2, 35583620), (4, 17791810), (5, 14233448), (8, 8895905), (10, 7116724), (20, 3558362), (40, 1779181), (643, 110680), (1286, 55340), (2572, 27670), (2767, 25720), (3215, 22136), (5144, 13835), (5534, 12860), (6430, 11068)]