12556840

素因数分解:

$2^3\times 5^1\times {\mathrm{313921}}^1$

素因数の和:313932

約数の個数: 16

約数和(自身を含む): 28252980

約数和(自身を除く): 15696140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313921, 627842, 1255684, 1569605, 2511368, 3139210, 6278420, 12556840]

約数ペア:

[(1, 12556840), (2, 6278420), (4, 3139210), (5, 2511368), (8, 1569605), (10, 1255684), (20, 627842), (40, 313921)]