28757880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:198

約数の個数: 192

約数和(自身を含む): 102435840

約数和(自身を除く): 73677960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 37, 40, 45, 51, 60, 68, 72, 74, 85, 90, 102, 111, 120, 127, 136, 148, 153, 170, 180, 185, 204, 222, 254, 255, 296, 306, 333, 340, 360, 370, 381, 408, 444, 508, 510, 555, 612, 629, 635, 666, 680, 740, 762, 765, 888, 1016, 1020, 1110, 1143, 1224, 1258, 1270, 1332, 1480, 1524, 1530, 1665, 1887, 1905, 2040, 2159, 2220, 2286, 2516, 2540, 2664, 3048, 3060, 3145, 3330, 3774, 3810, 4318, 4440, 4572, 4699, 5032, 5080, 5661, 5715, 6120, 6290, 6477, 6660, 7548, 7620, 8636, 9144, 9398, 9435, 10795, 11322, 11430, 12580, 12954, 13320, 14097, 15096, 15240, 17272, 18796, 18870, 19431, 21590, 22644, 22860, 23495, 25160, 25908, 28194, 28305, 32385, 37592, 37740, 38862, 42291, 43180, 45288, 45720, 46990, 51816, 56388, 56610, 64770, 70485, 75480, 77724, 79883, 84582, 86360, 93980, 97155, 112776, 113220, 129540, 140970, 155448, 159766, 169164, 187960, 194310, 211455, 226440, 239649, 259080, 281940, 319532, 338328, 388620, 399415, 422910, 479298, 563880, 639064, 718947, 777240, 798830, 845820, 958596, 1198245, 1437894, 1597660, 1691640, 1917192, 2396490, 2875788, 3195320, 3594735, 4792980, 5751576, 7189470, 9585960, 14378940, 28757880]

約数ペア:

[(1, 28757880), (2, 14378940), (3, 9585960), (4, 7189470), (5, 5751576), (6, 4792980), (8, 3594735), (9, 3195320), (10, 2875788), (12, 2396490), (15, 1917192), (17, 1691640), (18, 1597660), (20, 1437894), (24, 1198245), (30, 958596), (34, 845820), (36, 798830), (37, 777240), (40, 718947), (45, 639064), (51, 563880), (60, 479298), (68, 422910), (72, 399415), (74, 388620), (85, 338328), (90, 319532), (102, 281940), (111, 259080), (120, 239649), (127, 226440), (136, 211455), (148, 194310), (153, 187960), (170, 169164), (180, 159766), (185, 155448), (204, 140970), (222, 129540), (254, 113220), (255, 112776), (296, 97155), (306, 93980), (333, 86360), (340, 84582), (360, 79883), (370, 77724), (381, 75480), (408, 70485), (444, 64770), (508, 56610), (510, 56388), (555, 51816), (612, 46990), (629, 45720), (635, 45288), (666, 43180), (680, 42291), (740, 38862), (762, 37740), (765, 37592), (888, 32385), (1016, 28305), (1020, 28194), (1110, 25908), (1143, 25160), (1224, 23495), (1258, 22860), (1270, 22644), (1332, 21590), (1480, 19431), (1524, 18870), (1530, 18796), (1665, 17272), (1887, 15240), (1905, 15096), (2040, 14097), (2159, 13320), (2220, 12954), (2286, 12580), (2516, 11430), (2540, 11322), (2664, 10795), (3048, 9435), (3060, 9398), (3145, 9144), (3330, 8636), (3774, 7620), (3810, 7548), (4318, 6660), (4440, 6477), (4572, 6290), (4699, 6120), (5032, 5715), (5080, 5661)]