31784080

素因数分解:

$2^4\times 5^1\times {\mathrm{397301}}^1$

素因数の和:397314

約数の個数: 20

約数和(自身を含む): 73898172

約数和(自身を除く): 42114092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397301, 794602, 1589204, 1986505, 3178408, 3973010, 6356816, 7946020, 15892040, 31784080]

約数ペア:

[(1, 31784080), (2, 15892040), (4, 7946020), (5, 6356816), (8, 3973010), (10, 3178408), (16, 1986505), (20, 1589204), (40, 794602), (80, 397301)]