64639225

素因数分解:

$5^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{857}}^1$

素因数の和:1305

約数の個数: 24

約数和(自身を含む): 91922688

約数和(自身を除く): 27283463

約数列:

[1, 5, 7, 25, 35, 175, 431, 857, 2155, 3017, 4285, 5999, 10775, 15085, 21425, 29995, 75425, 149975, 369367, 1846835, 2585569, 9234175, 12927845, 64639225]

約数ペア:

[(1, 64639225), (5, 12927845), (7, 9234175), (25, 2585569), (35, 1846835), (175, 369367), (431, 149975), (857, 75425), (2155, 29995), (3017, 21425), (4285, 15085), (5999, 10775)]