13778020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9437}}^1$

素因数の和:9519

約数の個数: 24

約数和(自身を含む): 29333304

約数和(自身を除く): 15555284

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 9437, 18874, 37748, 47185, 94370, 188740, 688901, 1377802, 2755604, 3444505, 6889010, 13778020]

約数ペア:

[(1, 13778020), (2, 6889010), (4, 3444505), (5, 2755604), (10, 1377802), (20, 688901), (73, 188740), (146, 94370), (292, 47185), (365, 37748), (730, 18874), (1460, 9437)]