287078960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{512641}}^1$

素因数の和:512661

約数の個数: 40

約数和(自身を含む): 762811296

約数和(自身を除く): 475732336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 512641, 1025282, 2050564, 2563205, 3588487, 4101128, 5126410, 7176974, 8202256, 10252820, 14353948, 17942435, 20505640, 28707896, 35884870, 41011280, 57415792, 71769740, 143539480, 287078960]

約数ペア:

[(1, 287078960), (2, 143539480), (4, 71769740), (5, 57415792), (7, 41011280), (8, 35884870), (10, 28707896), (14, 20505640), (16, 17942435), (20, 14353948), (28, 10252820), (35, 8202256), (40, 7176974), (56, 5126410), (70, 4101128), (80, 3588487), (112, 2563205), (140, 2050564), (280, 1025282), (560, 512641)]