30791440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8951}}^1$

素因数の和:9007

約数の個数: 40

約数和(自身を含む): 73263168

約数和(自身を除く): 42471728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8951, 17902, 35804, 44755, 71608, 89510, 143216, 179020, 358040, 384893, 716080, 769786, 1539572, 1924465, 3079144, 3848930, 6158288, 7697860, 15395720, 30791440]

約数ペア:

[(1, 30791440), (2, 15395720), (4, 7697860), (5, 6158288), (8, 3848930), (10, 3079144), (16, 1924465), (20, 1539572), (40, 769786), (43, 716080), (80, 384893), (86, 358040), (172, 179020), (215, 143216), (344, 89510), (430, 71608), (688, 44755), (860, 35804), (1720, 17902), (3440, 8951)]