81223888

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:631

約数の個数: 40

約数和(自身を含む): 160791048

約数和(自身を除く): 79567160

約数列:

[1, 2, 4, 8, 16, 73, 146, 197, 292, 353, 394, 584, 706, 788, 1168, 1412, 1576, 2824, 3152, 5648, 14381, 25769, 28762, 51538, 57524, 69541, 103076, 115048, 139082, 206152, 230096, 278164, 412304, 556328, 1112656, 5076493, 10152986, 20305972, 40611944, 81223888]

約数ペア:

[(1, 81223888), (2, 40611944), (4, 20305972), (8, 10152986), (16, 5076493), (73, 1112656), (146, 556328), (197, 412304), (292, 278164), (353, 230096), (394, 206152), (584, 139082), (706, 115048), (788, 103076), (1168, 69541), (1412, 57524), (1576, 51538), (2824, 28762), (3152, 25769), (5648, 14381)]