12982180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20939}}^1$

素因数の和:20979

約数の個数: 24

約数和(自身を含む): 28143360

約数和(自身を除く): 15161180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20939, 41878, 83756, 104695, 209390, 418780, 649109, 1298218, 2596436, 3245545, 6491090, 12982180]

約数ペア:

[(1, 12982180), (2, 6491090), (4, 3245545), (5, 2596436), (10, 1298218), (20, 649109), (31, 418780), (62, 209390), (124, 104695), (155, 83756), (310, 41878), (620, 20939)]