870840520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1979183}}^1$

素因数の和:1979205

約数の個数: 32

約数和(自身を含む): 2137518720

約数和(自身を除く): 1266678200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1979183, 3958366, 7916732, 9895915, 15833464, 19791830, 21771013, 39583660, 43542026, 79167320, 87084052, 108855065, 174168104, 217710130, 435420260, 870840520]

約数ペア:

[(1, 870840520), (2, 435420260), (4, 217710130), (5, 174168104), (8, 108855065), (10, 87084052), (11, 79167320), (20, 43542026), (22, 39583660), (40, 21771013), (44, 19791830), (55, 15833464), (88, 9895915), (110, 7916732), (220, 3958366), (440, 1979183)]