19544080

素因数分解:

$2^4\times 5^1\times {\mathrm{244301}}^1$

素因数の和:244314

約数の個数: 20

約数和(自身を含む): 45440172

約数和(自身を除く): 25896092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244301, 488602, 977204, 1221505, 1954408, 2443010, 3908816, 4886020, 9772040, 19544080]

約数ペア:

[(1, 19544080), (2, 9772040), (4, 4886020), (5, 3908816), (8, 2443010), (10, 1954408), (16, 1221505), (20, 977204), (40, 488602), (80, 244301)]