1272080

素因数分解:

$2^4\times 5^1\times {\mathrm{15901}}^1$

素因数の和:15914

約数の個数: 20

約数和(自身を含む): 2957772

約数和(自身を除く): 1685692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15901, 31802, 63604, 79505, 127208, 159010, 254416, 318020, 636040, 1272080]

約数ペア:

[(1, 1272080), (2, 636040), (4, 318020), (5, 254416), (8, 159010), (10, 127208), (16, 79505), (20, 63604), (40, 31802), (80, 15901)]