20398530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{679951}}^1$

素因数の和:679961

約数の個数: 16

約数和(自身を含む): 48956544

約数和(自身を除く): 28558014

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 679951, 1359902, 2039853, 3399755, 4079706, 6799510, 10199265, 20398530]

約数ペア:

[(1, 20398530), (2, 10199265), (3, 6799510), (5, 4079706), (6, 3399755), (10, 2039853), (15, 1359902), (30, 679951)]