81246400

素因数分解:

$2^6\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:171

約数の個数: 168

約数和(自身を含む): 221101920

約数和(自身を除く): 139855520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 29, 32, 34, 40, 50, 58, 64, 68, 80, 85, 100, 103, 116, 136, 145, 160, 170, 200, 206, 232, 272, 290, 320, 340, 400, 412, 425, 464, 493, 515, 544, 580, 680, 725, 800, 824, 850, 928, 986, 1030, 1088, 1160, 1360, 1450, 1600, 1648, 1700, 1751, 1856, 1972, 2060, 2320, 2465, 2575, 2720, 2900, 2987, 3296, 3400, 3502, 3944, 4120, 4640, 4930, 5150, 5440, 5800, 5974, 6592, 6800, 7004, 7888, 8240, 8755, 9280, 9860, 10300, 11600, 11948, 12325, 13600, 14008, 14935, 15776, 16480, 17510, 19720, 20600, 23200, 23896, 24650, 27200, 28016, 29870, 31552, 32960, 35020, 39440, 41200, 43775, 46400, 47792, 49300, 50779, 56032, 59740, 70040, 74675, 78880, 82400, 87550, 95584, 98600, 101558, 112064, 119480, 140080, 149350, 157760, 164800, 175100, 191168, 197200, 203116, 238960, 253895, 280160, 298700, 350200, 394400, 406232, 477920, 507790, 560320, 597400, 700400, 788800, 812464, 955840, 1015580, 1194800, 1269475, 1400800, 1624928, 2031160, 2389600, 2538950, 2801600, 3249856, 4062320, 4779200, 5077900, 8124640, 10155800, 16249280, 20311600, 40623200, 81246400]

約数ペア:

[(1, 81246400), (2, 40623200), (4, 20311600), (5, 16249280), (8, 10155800), (10, 8124640), (16, 5077900), (17, 4779200), (20, 4062320), (25, 3249856), (29, 2801600), (32, 2538950), (34, 2389600), (40, 2031160), (50, 1624928), (58, 1400800), (64, 1269475), (68, 1194800), (80, 1015580), (85, 955840), (100, 812464), (103, 788800), (116, 700400), (136, 597400), (145, 560320), (160, 507790), (170, 477920), (200, 406232), (206, 394400), (232, 350200), (272, 298700), (290, 280160), (320, 253895), (340, 238960), (400, 203116), (412, 197200), (425, 191168), (464, 175100), (493, 164800), (515, 157760), (544, 149350), (580, 140080), (680, 119480), (725, 112064), (800, 101558), (824, 98600), (850, 95584), (928, 87550), (986, 82400), (1030, 78880), (1088, 74675), (1160, 70040), (1360, 59740), (1450, 56032), (1600, 50779), (1648, 49300), (1700, 47792), (1751, 46400), (1856, 43775), (1972, 41200), (2060, 39440), (2320, 35020), (2465, 32960), (2575, 31552), (2720, 29870), (2900, 28016), (2987, 27200), (3296, 24650), (3400, 23896), (3502, 23200), (3944, 20600), (4120, 19720), (4640, 17510), (4930, 16480), (5150, 15776), (5440, 14935), (5800, 14008), (5974, 13600), (6592, 12325), (6800, 11948), (7004, 11600), (7888, 10300), (8240, 9860), (8755, 9280)]