84391640

素因数分解:

$2^3\times 5^1\times {\mathrm{2109791}}^1$

素因数の和:2109802

約数の個数: 16

約数和(自身を含む): 189881280

約数和(自身を除く): 105489640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2109791, 4219582, 8439164, 10548955, 16878328, 21097910, 42195820, 84391640]

約数ペア:

[(1, 84391640), (2, 42195820), (4, 21097910), (5, 16878328), (8, 10548955), (10, 8439164), (20, 4219582), (40, 2109791)]