80642240

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 168

約数和(自身を含む): 231068880

約数和(自身を除く): 150426640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 64, 70, 74, 80, 98, 112, 139, 140, 148, 160, 185, 196, 224, 245, 259, 278, 280, 296, 320, 370, 392, 448, 490, 518, 556, 560, 592, 695, 740, 784, 973, 980, 1036, 1112, 1120, 1184, 1295, 1390, 1480, 1568, 1813, 1946, 1960, 2072, 2224, 2240, 2368, 2590, 2780, 2960, 3136, 3626, 3892, 3920, 4144, 4448, 4865, 5143, 5180, 5560, 5920, 6811, 7252, 7784, 7840, 8288, 8896, 9065, 9730, 10286, 10360, 11120, 11840, 13622, 14504, 15568, 15680, 16576, 18130, 19460, 20572, 20720, 22240, 25715, 27244, 29008, 31136, 34055, 36001, 36260, 38920, 41144, 41440, 44480, 51430, 54488, 58016, 62272, 68110, 72002, 72520, 77840, 82288, 82880, 102860, 108976, 116032, 136220, 144004, 145040, 155680, 164576, 180005, 205720, 217952, 252007, 272440, 288008, 290080, 311360, 329152, 360010, 411440, 435904, 504014, 544880, 576016, 580160, 720020, 822880, 1008028, 1089760, 1152032, 1260035, 1440040, 1645760, 2016056, 2179520, 2304064, 2520070, 2880080, 4032112, 5040140, 5760160, 8064224, 10080280, 11520320, 16128448, 20160560, 40321120, 80642240]

約数ペア:

[(1, 80642240), (2, 40321120), (4, 20160560), (5, 16128448), (7, 11520320), (8, 10080280), (10, 8064224), (14, 5760160), (16, 5040140), (20, 4032112), (28, 2880080), (32, 2520070), (35, 2304064), (37, 2179520), (40, 2016056), (49, 1645760), (56, 1440040), (64, 1260035), (70, 1152032), (74, 1089760), (80, 1008028), (98, 822880), (112, 720020), (139, 580160), (140, 576016), (148, 544880), (160, 504014), (185, 435904), (196, 411440), (224, 360010), (245, 329152), (259, 311360), (278, 290080), (280, 288008), (296, 272440), (320, 252007), (370, 217952), (392, 205720), (448, 180005), (490, 164576), (518, 155680), (556, 145040), (560, 144004), (592, 136220), (695, 116032), (740, 108976), (784, 102860), (973, 82880), (980, 82288), (1036, 77840), (1112, 72520), (1120, 72002), (1184, 68110), (1295, 62272), (1390, 58016), (1480, 54488), (1568, 51430), (1813, 44480), (1946, 41440), (1960, 41144), (2072, 38920), (2224, 36260), (2240, 36001), (2368, 34055), (2590, 31136), (2780, 29008), (2960, 27244), (3136, 25715), (3626, 22240), (3892, 20720), (3920, 20572), (4144, 19460), (4448, 18130), (4865, 16576), (5143, 15680), (5180, 15568), (5560, 14504), (5920, 13622), (6811, 11840), (7252, 11120), (7784, 10360), (7840, 10286), (8288, 9730), (8896, 9065)]