85564840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49747}}^1$

素因数の和:49801

約数の個数: 32

約数和(自身を含む): 197002080

約数和(自身を除く): 111437240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 49747, 99494, 198988, 248735, 397976, 497470, 994940, 1989880, 2139121, 4278242, 8556484, 10695605, 17112968, 21391210, 42782420, 85564840]

約数ペア:

[(1, 85564840), (2, 42782420), (4, 21391210), (5, 17112968), (8, 10695605), (10, 8556484), (20, 4278242), (40, 2139121), (43, 1989880), (86, 994940), (172, 497470), (215, 397976), (344, 248735), (430, 198988), (860, 99494), (1720, 49747)]