81221048

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4079}}^1$

素因数の和:4235

約数の個数: 32

約数和(自身を含む): 161568000

約数和(自身を除く): 80346952

約数列:

[1, 2, 4, 8, 19, 38, 76, 131, 152, 262, 524, 1048, 2489, 4079, 4978, 8158, 9956, 16316, 19912, 32632, 77501, 155002, 310004, 534349, 620008, 1068698, 2137396, 4274792, 10152631, 20305262, 40610524, 81221048]

約数ペア:

[(1, 81221048), (2, 40610524), (4, 20305262), (8, 10152631), (19, 4274792), (38, 2137396), (76, 1068698), (131, 620008), (152, 534349), (262, 310004), (524, 155002), (1048, 77501), (2489, 32632), (4079, 19912), (4978, 16316), (8158, 9956)]