26142040

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2543}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 59071680

約数和(自身を除く): 32929640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2543, 2570, 5086, 5140, 10172, 10280, 12715, 20344, 25430, 50860, 101720, 653551, 1307102, 2614204, 3267755, 5228408, 6535510, 13071020, 26142040]

約数ペア:

[(1, 26142040), (2, 13071020), (4, 6535510), (5, 5228408), (8, 3267755), (10, 2614204), (20, 1307102), (40, 653551), (257, 101720), (514, 50860), (1028, 25430), (1285, 20344), (2056, 12715), (2543, 10280), (2570, 10172), (5086, 5140)]