1399291280

素因数分解:

$2^4\times 5^1\times {\mathrm{17491141}}^1$

素因数の和:17491154

約数の個数: 20

約数和(自身を含む): 3253352412

約数和(自身を除く): 1854061132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17491141, 34982282, 69964564, 87455705, 139929128, 174911410, 279858256, 349822820, 699645640, 1399291280]

約数ペア:

[(1, 1399291280), (2, 699645640), (4, 349822820), (5, 279858256), (8, 174911410), (10, 139929128), (16, 87455705), (20, 69964564), (40, 34982282), (80, 17491141)]