42774440

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2749}}^1$

素因数の和:3149

約数の個数: 32

約数和(自身を含む): 96525000

約数和(自身を除く): 53750560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 2749, 3112, 3890, 5498, 7780, 10996, 13745, 15560, 21992, 27490, 54980, 109960, 1069361, 2138722, 4277444, 5346805, 8554888, 10693610, 21387220, 42774440]

約数ペア:

[(1, 42774440), (2, 21387220), (4, 10693610), (5, 8554888), (8, 5346805), (10, 4277444), (20, 2138722), (40, 1069361), (389, 109960), (778, 54980), (1556, 27490), (1945, 21992), (2749, 15560), (3112, 13745), (3890, 10996), (5498, 7780)]