128987404

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 308883456

約数和(自身を除く): 179896052

約数列:

[1, 2, 4, 7, 13, 14, 23, 26, 28, 31, 46, 49, 52, 62, 71, 91, 92, 98, 124, 142, 161, 182, 196, 217, 284, 299, 322, 364, 403, 434, 497, 598, 637, 644, 713, 806, 868, 923, 994, 1127, 1196, 1274, 1426, 1519, 1612, 1633, 1846, 1988, 2093, 2201, 2254, 2548, 2821, 2852, 3038, 3266, 3479, 3692, 4186, 4402, 4508, 4991, 5642, 6076, 6461, 6532, 6958, 8372, 8804, 9269, 9982, 11284, 11431, 12922, 13916, 14651, 15407, 18538, 19747, 19964, 21229, 22862, 25844, 28613, 29302, 30814, 34937, 37076, 39494, 42458, 45227, 45724, 50623, 57226, 58604, 61628, 64883, 69874, 78988, 80017, 84916, 90454, 101246, 107849, 114452, 129766, 139748, 148603, 160034, 180908, 200291, 202492, 215698, 259532, 297206, 320068, 354361, 400582, 431396, 454181, 594412, 658099, 708722, 801164, 908362, 1040221, 1316198, 1402037, 1417444, 1816724, 2080442, 2480527, 2632396, 2804074, 4160884, 4606693, 4961054, 5608148, 9213386, 9922108, 18426772, 32246851, 64493702, 128987404]

約数ペア:

[(1, 128987404), (2, 64493702), (4, 32246851), (7, 18426772), (13, 9922108), (14, 9213386), (23, 5608148), (26, 4961054), (28, 4606693), (31, 4160884), (46, 2804074), (49, 2632396), (52, 2480527), (62, 2080442), (71, 1816724), (91, 1417444), (92, 1402037), (98, 1316198), (124, 1040221), (142, 908362), (161, 801164), (182, 708722), (196, 658099), (217, 594412), (284, 454181), (299, 431396), (322, 400582), (364, 354361), (403, 320068), (434, 297206), (497, 259532), (598, 215698), (637, 202492), (644, 200291), (713, 180908), (806, 160034), (868, 148603), (923, 139748), (994, 129766), (1127, 114452), (1196, 107849), (1274, 101246), (1426, 90454), (1519, 84916), (1612, 80017), (1633, 78988), (1846, 69874), (1988, 64883), (2093, 61628), (2201, 58604), (2254, 57226), (2548, 50623), (2821, 45724), (2852, 45227), (3038, 42458), (3266, 39494), (3479, 37076), (3692, 34937), (4186, 30814), (4402, 29302), (4508, 28613), (4991, 25844), (5642, 22862), (6076, 21229), (6461, 19964), (6532, 19747), (6958, 18538), (8372, 15407), (8804, 14651), (9269, 13916), (9982, 12922), (11284, 11431)]