12978980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{92707}}^1$

素因数の和:92723

約数の個数: 24

約数和(自身を含む): 31149888

約数和(自身を除く): 18170908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 92707, 185414, 370828, 463535, 648949, 927070, 1297898, 1854140, 2595796, 3244745, 6489490, 12978980]

約数ペア:

[(1, 12978980), (2, 6489490), (4, 3244745), (5, 2595796), (7, 1854140), (10, 1297898), (14, 927070), (20, 648949), (28, 463535), (35, 370828), (70, 185414), (140, 92707)]