1244720

素因数分解:

$2^4\times 5^1\times {\mathrm{15559}}^1$

素因数の和:15572

約数の個数: 20

約数和(自身を含む): 2894160

約数和(自身を除く): 1649440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15559, 31118, 62236, 77795, 124472, 155590, 248944, 311180, 622360, 1244720]

約数ペア:

[(1, 1244720), (2, 622360), (4, 311180), (5, 248944), (8, 155590), (10, 124472), (16, 77795), (20, 62236), (40, 31118), (80, 15559)]