31878160

素因数分解:

$2^4\times 5^1\times {\mathrm{398477}}^1$

素因数の和:398490

約数の個数: 20

約数和(自身を含む): 74116908

約数和(自身を除く): 42238748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398477, 796954, 1593908, 1992385, 3187816, 3984770, 6375632, 7969540, 15939080, 31878160]

約数ペア:

[(1, 31878160), (2, 15939080), (4, 7969540), (5, 6375632), (8, 3984770), (10, 3187816), (16, 1992385), (20, 1593908), (40, 796954), (80, 398477)]