193989985

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:1033

約数の個数: 32

約数和(自身を含む): 274298112

約数和(自身を除く): 80308127

約数列:

[1, 5, 7, 35, 43, 157, 215, 301, 785, 821, 1099, 1505, 4105, 5495, 5747, 6751, 28735, 33755, 35303, 47257, 128897, 176515, 236285, 247121, 644485, 902279, 1235605, 4511395, 5542571, 27712855, 38797997, 193989985]

約数ペア:

[(1, 193989985), (5, 38797997), (7, 27712855), (35, 5542571), (43, 4511395), (157, 1235605), (215, 902279), (301, 644485), (785, 247121), (821, 236285), (1099, 176515), (1505, 128897), (4105, 47257), (5495, 35303), (5747, 33755), (6751, 28735)]