207978640

素因数分解:

$2^4\times 5^1\times {\mathrm{613}}^1\times {\mathrm{4241}}^1$

素因数の和:4867

約数の個数: 40

約数和(自身を含む): 484453368

約数和(自身を除く): 276474728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 613, 1226, 2452, 3065, 4241, 4904, 6130, 8482, 9808, 12260, 16964, 21205, 24520, 33928, 42410, 49040, 67856, 84820, 169640, 339280, 2599733, 5199466, 10398932, 12998665, 20797864, 25997330, 41595728, 51994660, 103989320, 207978640]

約数ペア:

[(1, 207978640), (2, 103989320), (4, 51994660), (5, 41595728), (8, 25997330), (10, 20797864), (16, 12998665), (20, 10398932), (40, 5199466), (80, 2599733), (613, 339280), (1226, 169640), (2452, 84820), (3065, 67856), (4241, 49040), (4904, 42410), (6130, 33928), (8482, 24520), (9808, 21205), (12260, 16964)]