646720

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:107

約数の個数: 56

約数和(自身を含む): 1609344

約数和(自身を除く): 962624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 47, 64, 80, 86, 94, 160, 172, 188, 215, 235, 320, 344, 376, 430, 470, 688, 752, 860, 940, 1376, 1504, 1720, 1880, 2021, 2752, 3008, 3440, 3760, 4042, 6880, 7520, 8084, 10105, 13760, 15040, 16168, 20210, 32336, 40420, 64672, 80840, 129344, 161680, 323360, 646720]

約数ペア:

[(1, 646720), (2, 323360), (4, 161680), (5, 129344), (8, 80840), (10, 64672), (16, 40420), (20, 32336), (32, 20210), (40, 16168), (43, 15040), (47, 13760), (64, 10105), (80, 8084), (86, 7520), (94, 6880), (160, 4042), (172, 3760), (188, 3440), (215, 3008), (235, 2752), (320, 2021), (344, 1880), (376, 1720), (430, 1504), (470, 1376), (688, 940), (752, 860)]