1981640

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 4510080

約数和(自身を除く): 2528440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 463, 535, 856, 926, 1070, 1852, 2140, 2315, 3704, 4280, 4630, 9260, 18520, 49541, 99082, 198164, 247705, 396328, 495410, 990820, 1981640]

約数ペア:

[(1, 1981640), (2, 990820), (4, 495410), (5, 396328), (8, 247705), (10, 198164), (20, 99082), (40, 49541), (107, 18520), (214, 9260), (428, 4630), (463, 4280), (535, 3704), (856, 2315), (926, 2140), (1070, 1852)]