261625364

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 652369536

約数和(自身を除く): 390744172

約数列:

[1, 2, 4, 7, 11, 13, 14, 19, 22, 26, 28, 38, 44, 52, 76, 77, 91, 133, 143, 154, 181, 182, 209, 247, 266, 286, 308, 361, 362, 364, 418, 494, 532, 572, 722, 724, 836, 988, 1001, 1267, 1444, 1463, 1729, 1991, 2002, 2353, 2527, 2534, 2717, 2926, 3439, 3458, 3971, 3982, 4004, 4693, 4706, 5054, 5068, 5434, 5852, 6878, 6916, 7942, 7964, 9386, 9412, 10108, 10868, 13756, 13937, 15884, 16471, 18772, 19019, 24073, 25883, 27797, 27874, 32851, 32942, 37829, 38038, 44707, 48146, 51623, 51766, 55594, 55748, 65341, 65702, 65884, 75658, 76076, 89414, 96292, 103246, 103532, 111188, 130682, 131404, 151316, 178828, 181181, 206492, 261364, 264803, 312949, 361361, 362362, 457387, 491777, 529606, 625898, 718751, 722722, 724724, 849433, 914774, 983554, 1059212, 1251796, 1437502, 1445444, 1698866, 1829548, 1967108, 2875004, 3397732, 3442439, 5031257, 5946031, 6884878, 9343763, 10062514, 11892062, 13769756, 18687526, 20125028, 23784124, 37375052, 65406341, 130812682, 261625364]

約数ペア:

[(1, 261625364), (2, 130812682), (4, 65406341), (7, 37375052), (11, 23784124), (13, 20125028), (14, 18687526), (19, 13769756), (22, 11892062), (26, 10062514), (28, 9343763), (38, 6884878), (44, 5946031), (52, 5031257), (76, 3442439), (77, 3397732), (91, 2875004), (133, 1967108), (143, 1829548), (154, 1698866), (181, 1445444), (182, 1437502), (209, 1251796), (247, 1059212), (266, 983554), (286, 914774), (308, 849433), (361, 724724), (362, 722722), (364, 718751), (418, 625898), (494, 529606), (532, 491777), (572, 457387), (722, 362362), (724, 361361), (836, 312949), (988, 264803), (1001, 261364), (1267, 206492), (1444, 181181), (1463, 178828), (1729, 151316), (1991, 131404), (2002, 130682), (2353, 111188), (2527, 103532), (2534, 103246), (2717, 96292), (2926, 89414), (3439, 76076), (3458, 75658), (3971, 65884), (3982, 65702), (4004, 65341), (4693, 55748), (4706, 55594), (5054, 51766), (5068, 51623), (5434, 48146), (5852, 44707), (6878, 38038), (6916, 37829), (7942, 32942), (7964, 32851), (9386, 27874), (9412, 27797), (10108, 25883), (10868, 24073), (13756, 19019), (13937, 18772), (15884, 16471)]