19712580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328543}}^1$

素因数の和:328555

約数の個数: 24

約数和(自身を含む): 55195392

約数和(自身を除く): 35482812

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328543, 657086, 985629, 1314172, 1642715, 1971258, 3285430, 3942516, 4928145, 6570860, 9856290, 19712580]

約数ペア:

[(1, 19712580), (2, 9856290), (3, 6570860), (4, 4928145), (5, 3942516), (6, 3285430), (10, 1971258), (12, 1642715), (15, 1314172), (20, 985629), (30, 657086), (60, 328543)]