28907440

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2393}}^1$

素因数の和:2557

約数の個数: 40

約数和(自身を含む): 67683168

約数和(自身を除く): 38775728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 2393, 2416, 3020, 4786, 6040, 9572, 11965, 12080, 19144, 23930, 38288, 47860, 95720, 191440, 361343, 722686, 1445372, 1806715, 2890744, 3613430, 5781488, 7226860, 14453720, 28907440]

約数ペア:

[(1, 28907440), (2, 14453720), (4, 7226860), (5, 5781488), (8, 3613430), (10, 2890744), (16, 1806715), (20, 1445372), (40, 722686), (80, 361343), (151, 191440), (302, 95720), (604, 47860), (755, 38288), (1208, 23930), (1510, 19144), (2393, 12080), (2416, 11965), (3020, 9572), (4786, 6040)]