409291280

素因数分解:

$2^4\times 5^1\times {\mathrm{5116141}}^1$

素因数の和:5116154

約数の個数: 20

約数和(自身を含む): 951602412

約数和(自身を除く): 542311132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5116141, 10232282, 20464564, 25580705, 40929128, 51161410, 81858256, 102322820, 204645640, 409291280]

約数ペア:

[(1, 409291280), (2, 204645640), (4, 102322820), (5, 81858256), (8, 51161410), (10, 40929128), (16, 25580705), (20, 20464564), (40, 10232282), (80, 5116141)]