81668888

素因数分解:

$2^3\times 7^2\times {\mathrm{157}}^1\times {\mathrm{1327}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 179399520

約数和(自身を除く): 97730632

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 157, 196, 314, 392, 628, 1099, 1256, 1327, 2198, 2654, 4396, 5308, 7693, 8792, 9289, 10616, 15386, 18578, 30772, 37156, 61544, 65023, 74312, 130046, 208339, 260092, 416678, 520184, 833356, 1458373, 1666712, 2916746, 5833492, 10208611, 11666984, 20417222, 40834444, 81668888]

約数ペア:

[(1, 81668888), (2, 40834444), (4, 20417222), (7, 11666984), (8, 10208611), (14, 5833492), (28, 2916746), (49, 1666712), (56, 1458373), (98, 833356), (157, 520184), (196, 416678), (314, 260092), (392, 208339), (628, 130046), (1099, 74312), (1256, 65023), (1327, 61544), (2198, 37156), (2654, 30772), (4396, 18578), (5308, 15386), (7693, 10616), (8792, 9289)]