4821620

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^2$

素因数の和:991

約数の個数: 18

約数和(自身を含む): 10146066

約数和(自身を除く): 5324446

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 241081, 482162, 964324, 1205405, 2410810, 4821620]

約数ペア:

[(1, 4821620), (2, 2410810), (4, 1205405), (5, 964324), (10, 482162), (20, 241081), (491, 9820), (982, 4910), (1964, 2455)]