64544660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78713}}^1$

素因数の和:78763

約数の個数: 24

約数和(自身を含む): 138851496

約数和(自身を除く): 74306836

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 78713, 157426, 314852, 393565, 787130, 1574260, 3227233, 6454466, 12908932, 16136165, 32272330, 64544660]

約数ペア:

[(1, 64544660), (2, 32272330), (4, 16136165), (5, 12908932), (10, 6454466), (20, 3227233), (41, 1574260), (82, 787130), (164, 393565), (205, 314852), (410, 157426), (820, 78713)]