22556440

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{877}}^1$

素因数の和:1531

約数の個数: 32

約数和(自身を含む): 50888880

約数和(自身を除く): 28332440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 877, 1286, 1754, 2572, 3215, 3508, 4385, 5144, 6430, 7016, 8770, 12860, 17540, 25720, 35080, 563911, 1127822, 2255644, 2819555, 4511288, 5639110, 11278220, 22556440]

約数ペア:

[(1, 22556440), (2, 11278220), (4, 5639110), (5, 4511288), (8, 2819555), (10, 2255644), (20, 1127822), (40, 563911), (643, 35080), (877, 25720), (1286, 17540), (1754, 12860), (2572, 8770), (3215, 7016), (3508, 6430), (4385, 5144)]