2181680080

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1\times {\mathrm{977}}^1$

素因数の和:1364

約数の個数: 80

約数和(自身を含む): 5145813504

約数和(自身を除く): 2964133424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 271, 412, 515, 542, 824, 977, 1030, 1084, 1355, 1648, 1954, 2060, 2168, 2710, 3908, 4120, 4336, 4885, 5420, 7816, 8240, 9770, 10840, 15632, 19540, 21680, 27913, 39080, 55826, 78160, 100631, 111652, 139565, 201262, 223304, 264767, 279130, 402524, 446608, 503155, 529534, 558260, 805048, 1006310, 1059068, 1116520, 1323835, 1610096, 2012620, 2118136, 2233040, 2647670, 4025240, 4236272, 5295340, 8050480, 10590680, 21181360, 27271001, 54542002, 109084004, 136355005, 218168008, 272710010, 436336016, 545420020, 1090840040, 2181680080]

約数ペア:

[(1, 2181680080), (2, 1090840040), (4, 545420020), (5, 436336016), (8, 272710010), (10, 218168008), (16, 136355005), (20, 109084004), (40, 54542002), (80, 27271001), (103, 21181360), (206, 10590680), (271, 8050480), (412, 5295340), (515, 4236272), (542, 4025240), (824, 2647670), (977, 2233040), (1030, 2118136), (1084, 2012620), (1355, 1610096), (1648, 1323835), (1954, 1116520), (2060, 1059068), (2168, 1006310), (2710, 805048), (3908, 558260), (4120, 529534), (4336, 503155), (4885, 446608), (5420, 402524), (7816, 279130), (8240, 264767), (9770, 223304), (10840, 201262), (15632, 139565), (19540, 111652), (21680, 100631), (27913, 78160), (39080, 55826)]