278849080

素因数分解:

$2^3\times 5^1\times {\mathrm{6971227}}^1$

素因数の和:6971238

約数の個数: 16

約数和(自身を含む): 627410520

約数和(自身を除く): 348561440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6971227, 13942454, 27884908, 34856135, 55769816, 69712270, 139424540, 278849080]

約数ペア:

[(1, 278849080), (2, 139424540), (4, 69712270), (5, 55769816), (8, 34856135), (10, 27884908), (20, 13942454), (40, 6971227)]