26208680

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1019}}^1$

素因数の和:1673

約数の個数: 32

約数和(自身を含む): 59119200

約数和(自身を除く): 32910520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1019, 1286, 2038, 2572, 3215, 4076, 5095, 5144, 6430, 8152, 10190, 12860, 20380, 25720, 40760, 655217, 1310434, 2620868, 3276085, 5241736, 6552170, 13104340, 26208680]

約数ペア:

[(1, 26208680), (2, 13104340), (4, 6552170), (5, 5241736), (8, 3276085), (10, 2620868), (20, 1310434), (40, 655217), (643, 40760), (1019, 25720), (1286, 20380), (2038, 12860), (2572, 10190), (3215, 8152), (4076, 6430), (5095, 5144)]