81865568

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 165654720

約数和(自身を除く): 83789152

約数列:

[1, 2, 4, 8, 16, 32, 59, 118, 131, 236, 262, 331, 472, 524, 662, 944, 1048, 1324, 1888, 2096, 2648, 4192, 5296, 7729, 10592, 15458, 19529, 30916, 39058, 43361, 61832, 78116, 86722, 123664, 156232, 173444, 247328, 312464, 346888, 624928, 693776, 1387552, 2558299, 5116598, 10233196, 20466392, 40932784, 81865568]

約数ペア:

[(1, 81865568), (2, 40932784), (4, 20466392), (8, 10233196), (16, 5116598), (32, 2558299), (59, 1387552), (118, 693776), (131, 624928), (236, 346888), (262, 312464), (331, 247328), (472, 173444), (524, 156232), (662, 123664), (944, 86722), (1048, 78116), (1324, 61832), (1888, 43361), (2096, 39058), (2648, 30916), (4192, 19529), (5296, 15458), (7729, 10592)]