20108305

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 29196288

約数和(自身を除く): 9087983

約数列:

[1, 5, 7, 31, 35, 43, 155, 215, 217, 301, 431, 1085, 1333, 1505, 2155, 3017, 6665, 9331, 13361, 15085, 18533, 46655, 66805, 92665, 93527, 129731, 467635, 574523, 648655, 2872615, 4021661, 20108305]

約数ペア:

[(1, 20108305), (5, 4021661), (7, 2872615), (31, 648655), (35, 574523), (43, 467635), (155, 129731), (215, 93527), (217, 92665), (301, 66805), (431, 46655), (1085, 18533), (1333, 15085), (1505, 13361), (2155, 9331), (3017, 6665)]