8780740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4933}}^1$

素因数の和:5031

約数の個数: 24

約数和(自身を含む): 18650520

約数和(自身を除く): 9869780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4933, 9866, 19732, 24665, 49330, 98660, 439037, 878074, 1756148, 2195185, 4390370, 8780740]

約数ペア:

[(1, 8780740), (2, 4390370), (4, 2195185), (5, 1756148), (10, 878074), (20, 439037), (89, 98660), (178, 49330), (356, 24665), (445, 19732), (890, 9866), (1780, 4933)]