31883120

素因数分解:

$2^4\times 5^1\times {\mathrm{398539}}^1$

素因数の和:398552

約数の個数: 20

約数和(自身を含む): 74128440

約数和(自身を除く): 42245320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398539, 797078, 1594156, 1992695, 3188312, 3985390, 6376624, 7970780, 15941560, 31883120]

約数ペア:

[(1, 31883120), (2, 15941560), (4, 7970780), (5, 6376624), (8, 3985390), (10, 3188312), (16, 1992695), (20, 1594156), (40, 797078), (80, 398539)]