20862580

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1907}}^1$

素因数の和:2463

約数の個数: 24

約数和(自身を含む): 43914528

約数和(自身を除く): 23051948

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 1907, 2188, 2735, 3814, 5470, 7628, 9535, 10940, 19070, 38140, 1043129, 2086258, 4172516, 5215645, 10431290, 20862580]

約数ペア:

[(1, 20862580), (2, 10431290), (4, 5215645), (5, 4172516), (10, 2086258), (20, 1043129), (547, 38140), (1094, 19070), (1907, 10940), (2188, 9535), (2735, 7628), (3814, 5470)]