18685980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103811}}^1$

素因数の和:103826

約数の個数: 36

約数和(自身を含む): 56681352

約数和(自身を除く): 37995372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 103811, 207622, 311433, 415244, 519055, 622866, 934299, 1038110, 1245732, 1557165, 1868598, 2076220, 3114330, 3737196, 4671495, 6228660, 9342990, 18685980]

約数ペア:

[(1, 18685980), (2, 9342990), (3, 6228660), (4, 4671495), (5, 3737196), (6, 3114330), (9, 2076220), (10, 1868598), (12, 1557165), (15, 1245732), (18, 1038110), (20, 934299), (30, 622866), (36, 519055), (45, 415244), (60, 311433), (90, 207622), (180, 103811)]