12984140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49939}}^1$

素因数の和:49961

約数の個数: 24

約数和(自身を含む): 29364720

約数和(自身を除く): 16380580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49939, 99878, 199756, 249695, 499390, 649207, 998780, 1298414, 2596828, 3246035, 6492070, 12984140]

約数ペア:

[(1, 12984140), (2, 6492070), (4, 3246035), (5, 2596828), (10, 1298414), (13, 998780), (20, 649207), (26, 499390), (52, 249695), (65, 199756), (130, 99878), (260, 49939)]