20121131304

素因数分解:

$2^3\times 3^2\times {\mathrm{157}}^1\times {\mathrm{1780001}}^1$

素因数の和:1780170

約数の個数: 48

約数和(自身を含む): 54841861620

約数和(自身を除く): 34720730316

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 157, 314, 471, 628, 942, 1256, 1413, 1884, 2826, 3768, 5652, 11304, 1780001, 3560002, 5340003, 7120004, 10680006, 14240008, 16020009, 21360012, 32040018, 42720024, 64080036, 128160072, 279460157, 558920314, 838380471, 1117840628, 1676760942, 2235681256, 2515141413, 3353521884, 5030282826, 6707043768, 10060565652, 20121131304]

約数ペア:

[(1, 20121131304), (2, 10060565652), (3, 6707043768), (4, 5030282826), (6, 3353521884), (8, 2515141413), (9, 2235681256), (12, 1676760942), (18, 1117840628), (24, 838380471), (36, 558920314), (72, 279460157), (157, 128160072), (314, 64080036), (471, 42720024), (628, 32040018), (942, 21360012), (1256, 16020009), (1413, 14240008), (1884, 10680006), (2826, 7120004), (3768, 5340003), (5652, 3560002), (11304, 1780001)]