20989140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349819}}^1$

素因数の和:349831

約数の個数: 24

約数和(自身を含む): 58769760

約数和(自身を除く): 37780620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349819, 699638, 1049457, 1399276, 1749095, 2098914, 3498190, 4197828, 5247285, 6996380, 10494570, 20989140]

約数ペア:

[(1, 20989140), (2, 10494570), (3, 6996380), (4, 5247285), (5, 4197828), (6, 3498190), (10, 2098914), (12, 1749095), (15, 1399276), (20, 1049457), (30, 699638), (60, 349819)]