12928940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15767}}^1$

素因数の和:15817

約数の個数: 24

約数和(自身を含む): 27814752

約数和(自身を除く): 14885812

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15767, 31534, 63068, 78835, 157670, 315340, 646447, 1292894, 2585788, 3232235, 6464470, 12928940]

約数ペア:

[(1, 12928940), (2, 6464470), (4, 3232235), (5, 2585788), (10, 1292894), (20, 646447), (41, 315340), (82, 157670), (164, 78835), (205, 63068), (410, 31534), (820, 15767)]