31497040

素因数分解:

$2^4\times 5^1\times {\mathrm{393713}}^1$

素因数の和:393726

約数の個数: 20

約数和(自身を含む): 73230804

約数和(自身を除く): 41733764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 393713, 787426, 1574852, 1968565, 3149704, 3937130, 6299408, 7874260, 15748520, 31497040]

約数ペア:

[(1, 31497040), (2, 15748520), (4, 7874260), (5, 6299408), (8, 3937130), (10, 3149704), (16, 1968565), (20, 1574852), (40, 787426), (80, 393713)]