81087440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7621}}^1$

素因数の和:7660

約数の個数: 80

約数和(自身を含む): 226830720

約数和(自身を除く): 145743280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 7621, 10640, 15242, 30484, 38105, 53347, 60968, 76210, 106694, 121936, 144799, 152420, 213388, 266735, 289598, 304840, 426776, 533470, 579196, 609680, 723995, 853552, 1013593, 1066940, 1158392, 1447990, 2027186, 2133880, 2316784, 2895980, 4054372, 4267760, 5067965, 5791960, 8108744, 10135930, 11583920, 16217488, 20271860, 40543720, 81087440]

約数ペア:

[(1, 81087440), (2, 40543720), (4, 20271860), (5, 16217488), (7, 11583920), (8, 10135930), (10, 8108744), (14, 5791960), (16, 5067965), (19, 4267760), (20, 4054372), (28, 2895980), (35, 2316784), (38, 2133880), (40, 2027186), (56, 1447990), (70, 1158392), (76, 1066940), (80, 1013593), (95, 853552), (112, 723995), (133, 609680), (140, 579196), (152, 533470), (190, 426776), (266, 304840), (280, 289598), (304, 266735), (380, 213388), (532, 152420), (560, 144799), (665, 121936), (760, 106694), (1064, 76210), (1330, 60968), (1520, 53347), (2128, 38105), (2660, 30484), (5320, 15242), (7621, 10640)]