20012860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142949}}^1$

素因数の和:142965

約数の個数: 24

約数和(自身を含む): 48031200

約数和(自身を除く): 28018340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142949, 285898, 571796, 714745, 1000643, 1429490, 2001286, 2858980, 4002572, 5003215, 10006430, 20012860]

約数ペア:

[(1, 20012860), (2, 10006430), (4, 5003215), (5, 4002572), (7, 2858980), (10, 2001286), (14, 1429490), (20, 1000643), (28, 714745), (35, 571796), (70, 285898), (140, 142949)]