20640012

素因数分解:

$2^2\times 3^1\times {\mathrm{281}}^1\times {\mathrm{6121}}^1$

素因数の和:6409

約数の個数: 24

約数和(自身を含む): 48339312

約数和(自身を除く): 27699300

約数列:

[1, 2, 3, 4, 6, 12, 281, 562, 843, 1124, 1686, 3372, 6121, 12242, 18363, 24484, 36726, 73452, 1720001, 3440002, 5160003, 6880004, 10320006, 20640012]

約数ペア:

[(1, 20640012), (2, 10320006), (3, 6880004), (4, 5160003), (6, 3440002), (12, 1720001), (281, 73452), (562, 36726), (843, 24484), (1124, 18363), (1686, 12242), (3372, 6121)]