31641040

素因数分解:

$2^4\times 5^1\times {\mathrm{395513}}^1$

素因数の和:395526

約数の個数: 20

約数和(自身を含む): 73565604

約数和(自身を除く): 41924564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 395513, 791026, 1582052, 1977565, 3164104, 3955130, 6328208, 7910260, 15820520, 31641040]

約数ペア:

[(1, 31641040), (2, 15820520), (4, 7910260), (5, 6328208), (8, 3955130), (10, 3164104), (16, 1977565), (20, 1582052), (40, 791026), (80, 395513)]