778847138

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 1206057600

約数和(自身を除く): 427210462

約数列:

[1, 2, 71, 131, 142, 149, 262, 281, 298, 562, 9301, 10579, 18602, 19519, 19951, 21158, 36811, 39038, 39902, 41869, 73622, 83738, 1385849, 2613581, 2771698, 2972699, 5227162, 5484839, 5945398, 10969678, 389423569, 778847138]

約数ペア:

[(1, 778847138), (2, 389423569), (71, 10969678), (131, 5945398), (142, 5484839), (149, 5227162), (262, 2972699), (281, 2771698), (298, 2613581), (562, 1385849), (9301, 83738), (10579, 73622), (18602, 41869), (19519, 39902), (19951, 39038), (21158, 36811)]