2149017680

素因数分解:

$2^4\times 5^1\times {\mathrm{26862721}}^1$

素因数の和:26862734

約数の個数: 20

約数和(自身を含む): 4996466292

約数和(自身を除く): 2847448612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26862721, 53725442, 107450884, 134313605, 214901768, 268627210, 429803536, 537254420, 1074508840, 2149017680]

約数ペア:

[(1, 2149017680), (2, 1074508840), (4, 537254420), (5, 429803536), (8, 268627210), (10, 214901768), (16, 134313605), (20, 107450884), (40, 53725442), (80, 26862721)]