89040520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{54293}}^1$

素因数の和:54345

約数の個数: 32

約数和(自身を含む): 205231320

約数和(自身を除く): 116190800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 54293, 108586, 217172, 271465, 434344, 542930, 1085860, 2171720, 2226013, 4452026, 8904052, 11130065, 17808104, 22260130, 44520260, 89040520]

約数ペア:

[(1, 89040520), (2, 44520260), (4, 22260130), (5, 17808104), (8, 11130065), (10, 8904052), (20, 4452026), (40, 2226013), (41, 2171720), (82, 1085860), (164, 542930), (205, 434344), (328, 271465), (410, 217172), (820, 108586), (1640, 54293)]