16505780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20129}}^1$

素因数の和:20179

約数の個数: 24

約数和(自身を含む): 35509320

約数和(自身を除く): 19003540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20129, 40258, 80516, 100645, 201290, 402580, 825289, 1650578, 3301156, 4126445, 8252890, 16505780]

約数ペア:

[(1, 16505780), (2, 8252890), (4, 4126445), (5, 3301156), (10, 1650578), (20, 825289), (41, 402580), (82, 201290), (164, 100645), (205, 80516), (410, 40258), (820, 20129)]