8515720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4951}}^1$

素因数の和:5005

約数の個数: 32

約数和(自身を含む): 19609920

約数和(自身を除く): 11094200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4951, 9902, 19804, 24755, 39608, 49510, 99020, 198040, 212893, 425786, 851572, 1064465, 1703144, 2128930, 4257860, 8515720]

約数ペア:

[(1, 8515720), (2, 4257860), (4, 2128930), (5, 1703144), (8, 1064465), (10, 851572), (20, 425786), (40, 212893), (43, 198040), (86, 99020), (172, 49510), (215, 39608), (344, 24755), (430, 19804), (860, 9902), (1720, 4951)]