261960720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{739}}^1$

素因数の和:973

約数の個数: 160

約数和(自身を含む): 933749760

約数和(自身を除く): 671789040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 211, 240, 280, 336, 420, 422, 560, 633, 739, 840, 844, 1055, 1266, 1477, 1478, 1680, 1688, 2110, 2217, 2532, 2954, 2956, 3165, 3376, 3695, 4220, 4431, 4434, 5064, 5173, 5908, 5912, 6330, 7385, 7390, 8440, 8862, 8868, 10128, 10346, 11085, 11816, 11824, 12660, 14770, 14780, 15519, 16880, 17724, 17736, 20692, 22155, 22170, 23632, 25320, 25865, 29540, 29560, 31038, 35448, 35472, 41384, 44310, 44340, 50640, 51730, 59080, 59120, 62076, 70896, 77595, 82768, 88620, 88680, 103460, 118160, 124152, 155190, 155929, 177240, 177360, 206920, 248304, 310380, 311858, 354480, 413840, 467787, 620760, 623716, 779645, 935574, 1091503, 1241520, 1247432, 1559290, 1871148, 2183006, 2338935, 2494864, 3118580, 3274509, 3742296, 4366012, 4677870, 5457515, 6237160, 6549018, 7484592, 8732024, 9355740, 10915030, 12474320, 13098036, 16372545, 17464048, 18711480, 21830060, 26196072, 32745090, 37422960, 43660120, 52392144, 65490180, 87320240, 130980360, 261960720]

約数ペア:

[(1, 261960720), (2, 130980360), (3, 87320240), (4, 65490180), (5, 52392144), (6, 43660120), (7, 37422960), (8, 32745090), (10, 26196072), (12, 21830060), (14, 18711480), (15, 17464048), (16, 16372545), (20, 13098036), (21, 12474320), (24, 10915030), (28, 9355740), (30, 8732024), (35, 7484592), (40, 6549018), (42, 6237160), (48, 5457515), (56, 4677870), (60, 4366012), (70, 3742296), (80, 3274509), (84, 3118580), (105, 2494864), (112, 2338935), (120, 2183006), (140, 1871148), (168, 1559290), (210, 1247432), (211, 1241520), (240, 1091503), (280, 935574), (336, 779645), (420, 623716), (422, 620760), (560, 467787), (633, 413840), (739, 354480), (840, 311858), (844, 310380), (1055, 248304), (1266, 206920), (1477, 177360), (1478, 177240), (1680, 155929), (1688, 155190), (2110, 124152), (2217, 118160), (2532, 103460), (2954, 88680), (2956, 88620), (3165, 82768), (3376, 77595), (3695, 70896), (4220, 62076), (4431, 59120), (4434, 59080), (5064, 51730), (5173, 50640), (5908, 44340), (5912, 44310), (6330, 41384), (7385, 35472), (7390, 35448), (8440, 31038), (8862, 29560), (8868, 29540), (10128, 25865), (10346, 25320), (11085, 23632), (11816, 22170), (11824, 22155), (12660, 20692), (14770, 17736), (14780, 17724), (15519, 16880)]