247374980

素因数分解:

$2^2\times 5^1\times {\mathrm{2221}}^1\times {\mathrm{5569}}^1$

素因数の和:7799

約数の個数: 24

約数和(自身を含む): 519814680

約数和(自身を除く): 272439700

約数列:

[1, 2, 4, 5, 10, 20, 2221, 4442, 5569, 8884, 11105, 11138, 22210, 22276, 27845, 44420, 55690, 111380, 12368749, 24737498, 49474996, 61843745, 123687490, 247374980]

約数ペア:

[(1, 247374980), (2, 123687490), (4, 61843745), (5, 49474996), (10, 24737498), (20, 12368749), (2221, 111380), (4442, 55690), (5569, 44420), (8884, 27845), (11105, 22276), (11138, 22210)]