278312080

素因数分解:

$2^4\times 5^1\times {\mathrm{3478901}}^1$

素因数の和:3478914

約数の個数: 20

約数和(自身を含む): 647075772

約数和(自身を除く): 368763692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3478901, 6957802, 13915604, 17394505, 27831208, 34789010, 55662416, 69578020, 139156040, 278312080]

約数ペア:

[(1, 278312080), (2, 139156040), (4, 69578020), (5, 55662416), (8, 34789010), (10, 27831208), (16, 17394505), (20, 13915604), (40, 6957802), (80, 3478901)]