19601240

素因数分解:

$2^3\times 5^1\times {\mathrm{490031}}^1$

素因数の和:490042

約数の個数: 16

約数和(自身を含む): 44102880

約数和(自身を除く): 24501640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490031, 980062, 1960124, 2450155, 3920248, 4900310, 9800620, 19601240]

約数ペア:

[(1, 19601240), (2, 9800620), (4, 4900310), (5, 3920248), (8, 2450155), (10, 1960124), (20, 980062), (40, 490031)]