1921640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{6863}}^1$

素因数の和:6881

約数の個数: 32

約数和(自身を含む): 4942080

約数和(自身を除く): 3020440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 6863, 13726, 27452, 34315, 48041, 54904, 68630, 96082, 137260, 192164, 240205, 274520, 384328, 480410, 960820, 1921640]

約数ペア:

[(1, 1921640), (2, 960820), (4, 480410), (5, 384328), (7, 274520), (8, 240205), (10, 192164), (14, 137260), (20, 96082), (28, 68630), (35, 54904), (40, 48041), (56, 34315), (70, 27452), (140, 13726), (280, 6863)]