20989740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349829}}^1$

素因数の和:349841

約数の個数: 24

約数和(自身を含む): 58771440

約数和(自身を除く): 37781700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349829, 699658, 1049487, 1399316, 1749145, 2098974, 3498290, 4197948, 5247435, 6996580, 10494870, 20989740]

約数ペア:

[(1, 20989740), (2, 10494870), (3, 6996580), (4, 5247435), (5, 4197948), (6, 3498290), (10, 2098974), (12, 1749145), (15, 1399316), (20, 1049487), (30, 699658), (60, 349829)]