213291280

素因数分解:

$2^4\times 5^1\times {\mathrm{2666141}}^1$

素因数の和:2666154

約数の個数: 20

約数和(自身を含む): 495902412

約数和(自身を除く): 282611132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2666141, 5332282, 10664564, 13330705, 21329128, 26661410, 42658256, 53322820, 106645640, 213291280]

約数ペア:

[(1, 213291280), (2, 106645640), (4, 53322820), (5, 42658256), (8, 26661410), (10, 21329128), (16, 13330705), (20, 10664564), (40, 5332282), (80, 2666141)]