161680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:103

約数の個数: 40

約数和(自身を含む): 392832

約数和(自身を除く): 231152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 688, 752, 860, 940, 1720, 1880, 2021, 3440, 3760, 4042, 8084, 10105, 16168, 20210, 32336, 40420, 80840, 161680]

約数ペア:

[(1, 161680), (2, 80840), (4, 40420), (5, 32336), (8, 20210), (10, 16168), (16, 10105), (20, 8084), (40, 4042), (43, 3760), (47, 3440), (80, 2021), (86, 1880), (94, 1720), (172, 940), (188, 860), (215, 752), (235, 688), (344, 470), (376, 430)]