20987580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349793}}^1$

素因数の和:349805

約数の個数: 24

約数和(自身を含む): 58765392

約数和(自身を除く): 37777812

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349793, 699586, 1049379, 1399172, 1748965, 2098758, 3497930, 4197516, 5246895, 6995860, 10493790, 20987580]

約数ペア:

[(1, 20987580), (2, 10493790), (3, 6995860), (4, 5246895), (5, 4197516), (6, 3497930), (10, 2098758), (12, 1748965), (15, 1399172), (20, 1049379), (30, 699586), (60, 349793)]