19191280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5851}}^1$

素因数の和:5905

約数の個数: 40

約数和(自身を含む): 45715824

約数和(自身を除く): 26524544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5851, 11702, 23404, 29255, 46808, 58510, 93616, 117020, 234040, 239891, 468080, 479782, 959564, 1199455, 1919128, 2398910, 3838256, 4797820, 9595640, 19191280]

約数ペア:

[(1, 19191280), (2, 9595640), (4, 4797820), (5, 3838256), (8, 2398910), (10, 1919128), (16, 1199455), (20, 959564), (40, 479782), (41, 468080), (80, 239891), (82, 234040), (164, 117020), (205, 93616), (328, 58510), (410, 46808), (656, 29255), (820, 23404), (1640, 11702), (3280, 5851)]