640465091

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2113}}^1$

素因数の和:2235

約数の個数: 32

約数和(自身を含む): 803658240

約数和(自身を除く): 163193149

約数列:

[1, 7, 19, 43, 53, 133, 301, 371, 817, 1007, 2113, 2279, 5719, 7049, 14791, 15953, 40147, 43301, 90859, 111989, 281029, 303107, 636013, 783923, 1726321, 2127791, 4815527, 12084247, 14894537, 33708689, 91495013, 640465091]

約数ペア:

[(1, 640465091), (7, 91495013), (19, 33708689), (43, 14894537), (53, 12084247), (133, 4815527), (301, 2127791), (371, 1726321), (817, 783923), (1007, 636013), (2113, 303107), (2279, 281029), (5719, 111989), (7049, 90859), (14791, 43301), (15953, 40147)]