42103640

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1637}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 94938480

約数和(自身を除く): 52834840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 1637, 2572, 3215, 3274, 5144, 6430, 6548, 8185, 12860, 13096, 16370, 25720, 32740, 65480, 1052591, 2105182, 4210364, 5262955, 8420728, 10525910, 21051820, 42103640]

約数ペア:

[(1, 42103640), (2, 21051820), (4, 10525910), (5, 8420728), (8, 5262955), (10, 4210364), (20, 2105182), (40, 1052591), (643, 65480), (1286, 32740), (1637, 25720), (2572, 16370), (3215, 13096), (3274, 12860), (5144, 8185), (6430, 6548)]