66405760

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 172339200

約数和(自身を除く): 105933440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 64, 76, 80, 86, 95, 127, 128, 152, 160, 172, 190, 215, 254, 304, 320, 344, 380, 430, 508, 608, 635, 640, 688, 760, 817, 860, 1016, 1216, 1270, 1376, 1520, 1634, 1720, 2032, 2413, 2432, 2540, 2752, 3040, 3268, 3440, 4064, 4085, 4826, 5080, 5461, 5504, 6080, 6536, 6880, 8128, 8170, 9652, 10160, 10922, 12065, 12160, 13072, 13760, 16256, 16340, 19304, 20320, 21844, 24130, 26144, 27305, 27520, 32680, 38608, 40640, 43688, 48260, 52288, 54610, 65360, 77216, 81280, 87376, 96520, 103759, 104576, 109220, 130720, 154432, 174752, 193040, 207518, 218440, 261440, 308864, 349504, 386080, 415036, 436880, 518795, 522880, 699008, 772160, 830072, 873760, 1037590, 1544320, 1660144, 1747520, 2075180, 3320288, 3495040, 4150360, 6640576, 8300720, 13281152, 16601440, 33202880, 66405760]

約数ペア:

[(1, 66405760), (2, 33202880), (4, 16601440), (5, 13281152), (8, 8300720), (10, 6640576), (16, 4150360), (19, 3495040), (20, 3320288), (32, 2075180), (38, 1747520), (40, 1660144), (43, 1544320), (64, 1037590), (76, 873760), (80, 830072), (86, 772160), (95, 699008), (127, 522880), (128, 518795), (152, 436880), (160, 415036), (172, 386080), (190, 349504), (215, 308864), (254, 261440), (304, 218440), (320, 207518), (344, 193040), (380, 174752), (430, 154432), (508, 130720), (608, 109220), (635, 104576), (640, 103759), (688, 96520), (760, 87376), (817, 81280), (860, 77216), (1016, 65360), (1216, 54610), (1270, 52288), (1376, 48260), (1520, 43688), (1634, 40640), (1720, 38608), (2032, 32680), (2413, 27520), (2432, 27305), (2540, 26144), (2752, 24130), (3040, 21844), (3268, 20320), (3440, 19304), (4064, 16340), (4085, 16256), (4826, 13760), (5080, 13072), (5461, 12160), (5504, 12065), (6080, 10922), (6536, 10160), (6880, 9652), (8128, 8170)]