385078960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{687641}}^1$

素因数の和:687661

約数の個数: 40

約数和(自身を含む): 1023211296

約数和(自身を除く): 638132336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 687641, 1375282, 2750564, 3438205, 4813487, 5501128, 6876410, 9626974, 11002256, 13752820, 19253948, 24067435, 27505640, 38507896, 48134870, 55011280, 77015792, 96269740, 192539480, 385078960]

約数ペア:

[(1, 385078960), (2, 192539480), (4, 96269740), (5, 77015792), (7, 55011280), (8, 48134870), (10, 38507896), (14, 27505640), (16, 24067435), (20, 19253948), (28, 13752820), (35, 11002256), (40, 9626974), (56, 6876410), (70, 5501128), (80, 4813487), (112, 3438205), (140, 2750564), (280, 1375282), (560, 687641)]