642889904

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{701}}^1$

素因数の和:826

約数の個数: 60

約数和(自身を含む): 1318254912

約数和(自身を除く): 675365008

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 701, 1333, 1402, 1849, 2666, 2804, 3698, 5332, 5608, 7396, 10664, 11216, 14792, 21328, 21731, 29584, 30143, 43462, 57319, 60286, 86924, 114638, 120572, 173848, 229276, 241144, 347696, 458552, 482288, 917104, 934433, 1296149, 1868866, 2592298, 3737732, 5184596, 7475464, 10369192, 14950928, 20738384, 40180619, 80361238, 160722476, 321444952, 642889904]

約数ペア:

[(1, 642889904), (2, 321444952), (4, 160722476), (8, 80361238), (16, 40180619), (31, 20738384), (43, 14950928), (62, 10369192), (86, 7475464), (124, 5184596), (172, 3737732), (248, 2592298), (344, 1868866), (496, 1296149), (688, 934433), (701, 917104), (1333, 482288), (1402, 458552), (1849, 347696), (2666, 241144), (2804, 229276), (3698, 173848), (5332, 120572), (5608, 114638), (7396, 86924), (10664, 60286), (11216, 57319), (14792, 43462), (21328, 30143), (21731, 29584)]