1640887920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1543}}^1$

素因数の和:1780

約数の個数: 240

約数和(自身を含む): 6331832832

約数和(自身を除く): 4690944912

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 211, 240, 252, 280, 315, 336, 360, 420, 422, 504, 560, 630, 633, 720, 840, 844, 1008, 1055, 1260, 1266, 1477, 1543, 1680, 1688, 1899, 2110, 2520, 2532, 2954, 3086, 3165, 3376, 3798, 4220, 4431, 4629, 5040, 5064, 5908, 6172, 6330, 7385, 7596, 7715, 8440, 8862, 9258, 9495, 10128, 10801, 11816, 12344, 12660, 13293, 13887, 14770, 15192, 15430, 16880, 17724, 18516, 18990, 21602, 22155, 23145, 23632, 24688, 25320, 26586, 27774, 29540, 30384, 30860, 32403, 35448, 37032, 37980, 43204, 44310, 46290, 50640, 53172, 54005, 55548, 59080, 61720, 64806, 66465, 69435, 70896, 74064, 75960, 86408, 88620, 92580, 97209, 106344, 108010, 111096, 118160, 123440, 129612, 132930, 138870, 151920, 162015, 172816, 177240, 185160, 194418, 212688, 216020, 222192, 259224, 265860, 277740, 324030, 325573, 354480, 370320, 388836, 432040, 486045, 518448, 531720, 555480, 648060, 651146, 777672, 864080, 972090, 976719, 1063440, 1110960, 1296120, 1302292, 1555344, 1627865, 1944180, 1953438, 2279011, 2592240, 2604584, 2930157, 3255730, 3888360, 3906876, 4558022, 4883595, 5209168, 5860314, 6511460, 6837033, 7776720, 7813752, 9116044, 9767190, 11395055, 11720628, 13022920, 13674066, 14650785, 15627504, 18232088, 19534380, 20511099, 22790110, 23441256, 26045840, 27348132, 29301570, 34185165, 36464176, 39068760, 41022198, 45580220, 46882512, 54696264, 58603140, 68370330, 78137520, 82044396, 91160440, 102555495, 109392528, 117206280, 136740660, 164088792, 182320880, 205110990, 234412560, 273481320, 328177584, 410221980, 546962640, 820443960, 1640887920]

約数ペア:

[(1, 1640887920), (2, 820443960), (3, 546962640), (4, 410221980), (5, 328177584), (6, 273481320), (7, 234412560), (8, 205110990), (9, 182320880), (10, 164088792), (12, 136740660), (14, 117206280), (15, 109392528), (16, 102555495), (18, 91160440), (20, 82044396), (21, 78137520), (24, 68370330), (28, 58603140), (30, 54696264), (35, 46882512), (36, 45580220), (40, 41022198), (42, 39068760), (45, 36464176), (48, 34185165), (56, 29301570), (60, 27348132), (63, 26045840), (70, 23441256), (72, 22790110), (80, 20511099), (84, 19534380), (90, 18232088), (105, 15627504), (112, 14650785), (120, 13674066), (126, 13022920), (140, 11720628), (144, 11395055), (168, 9767190), (180, 9116044), (210, 7813752), (211, 7776720), (240, 6837033), (252, 6511460), (280, 5860314), (315, 5209168), (336, 4883595), (360, 4558022), (420, 3906876), (422, 3888360), (504, 3255730), (560, 2930157), (630, 2604584), (633, 2592240), (720, 2279011), (840, 1953438), (844, 1944180), (1008, 1627865), (1055, 1555344), (1260, 1302292), (1266, 1296120), (1477, 1110960), (1543, 1063440), (1680, 976719), (1688, 972090), (1899, 864080), (2110, 777672), (2520, 651146), (2532, 648060), (2954, 555480), (3086, 531720), (3165, 518448), (3376, 486045), (3798, 432040), (4220, 388836), (4431, 370320), (4629, 354480), (5040, 325573), (5064, 324030), (5908, 277740), (6172, 265860), (6330, 259224), (7385, 222192), (7596, 216020), (7715, 212688), (8440, 194418), (8862, 185160), (9258, 177240), (9495, 172816), (10128, 162015), (10801, 151920), (11816, 138870), (12344, 132930), (12660, 129612), (13293, 123440), (13887, 118160), (14770, 111096), (15192, 108010), (15430, 106344), (16880, 97209), (17724, 92580), (18516, 88620), (18990, 86408), (21602, 75960), (22155, 74064), (23145, 70896), (23632, 69435), (24688, 66465), (25320, 64806), (26586, 61720), (27774, 59080), (29540, 55548), (30384, 54005), (30860, 53172), (32403, 50640), (35448, 46290), (37032, 44310), (37980, 43204)]