18547780

素因数分解:

$2^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{2003}}^1$

素因数の和:2475

約数の個数: 24

約数和(自身を含む): 39053952

約数和(自身を除く): 20506172

約数列:

[1, 2, 4, 5, 10, 20, 463, 926, 1852, 2003, 2315, 4006, 4630, 8012, 9260, 10015, 20030, 40060, 927389, 1854778, 3709556, 4636945, 9273890, 18547780]

約数ペア:

[(1, 18547780), (2, 9273890), (4, 4636945), (5, 3709556), (10, 1854778), (20, 927389), (463, 40060), (926, 20030), (1852, 10015), (2003, 9260), (2315, 8012), (4006, 4630)]