681477720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:726

約数の個数: 256

約数和(自身を含む): 2572922880

約数和(自身を除く): 1891445160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 131, 132, 140, 154, 165, 168, 210, 220, 231, 262, 264, 280, 308, 330, 385, 393, 420, 440, 462, 524, 563, 616, 655, 660, 770, 786, 840, 917, 924, 1048, 1126, 1155, 1310, 1320, 1441, 1540, 1572, 1689, 1834, 1848, 1965, 2252, 2310, 2620, 2751, 2815, 2882, 3080, 3144, 3378, 3668, 3930, 3941, 4323, 4504, 4585, 4620, 5240, 5502, 5630, 5764, 6193, 6756, 7205, 7336, 7860, 7882, 8445, 8646, 9170, 9240, 10087, 11004, 11260, 11528, 11823, 12386, 13512, 13755, 14410, 15720, 15764, 16890, 17292, 18340, 18579, 19705, 20174, 21615, 22008, 22520, 23646, 24772, 27510, 28820, 30261, 30965, 31528, 33780, 34584, 36680, 37158, 39410, 40348, 43230, 43351, 47292, 49544, 50435, 55020, 57640, 59115, 60522, 61930, 67560, 73753, 74316, 78820, 80696, 86460, 86702, 92895, 94584, 100870, 110040, 118230, 121044, 123860, 130053, 147506, 148632, 151305, 157640, 172920, 173404, 185790, 201740, 216755, 221259, 236460, 242088, 247720, 260106, 295012, 302610, 346808, 368765, 371580, 403480, 433510, 442518, 472920, 516271, 520212, 590024, 605220, 650265, 737530, 743160, 811283, 867020, 885036, 1032542, 1040424, 1106295, 1210440, 1300530, 1475060, 1548813, 1622566, 1734040, 1770072, 2065084, 2212590, 2433849, 2581355, 2601060, 2950120, 3097626, 3245132, 4056415, 4130168, 4425180, 4867698, 5162710, 5202120, 5678981, 6195252, 6490264, 7744065, 8112830, 8850360, 9735396, 10325420, 11357962, 12169245, 12390504, 15488130, 16225660, 17036943, 19470792, 20650840, 22715924, 24338490, 28394905, 30976260, 32451320, 34073886, 45431848, 48676980, 56789810, 61952520, 68147772, 85184715, 97353960, 113579620, 136295544, 170369430, 227159240, 340738860, 681477720]

約数ペア:

[(1, 681477720), (2, 340738860), (3, 227159240), (4, 170369430), (5, 136295544), (6, 113579620), (7, 97353960), (8, 85184715), (10, 68147772), (11, 61952520), (12, 56789810), (14, 48676980), (15, 45431848), (20, 34073886), (21, 32451320), (22, 30976260), (24, 28394905), (28, 24338490), (30, 22715924), (33, 20650840), (35, 19470792), (40, 17036943), (42, 16225660), (44, 15488130), (55, 12390504), (56, 12169245), (60, 11357962), (66, 10325420), (70, 9735396), (77, 8850360), (84, 8112830), (88, 7744065), (105, 6490264), (110, 6195252), (120, 5678981), (131, 5202120), (132, 5162710), (140, 4867698), (154, 4425180), (165, 4130168), (168, 4056415), (210, 3245132), (220, 3097626), (231, 2950120), (262, 2601060), (264, 2581355), (280, 2433849), (308, 2212590), (330, 2065084), (385, 1770072), (393, 1734040), (420, 1622566), (440, 1548813), (462, 1475060), (524, 1300530), (563, 1210440), (616, 1106295), (655, 1040424), (660, 1032542), (770, 885036), (786, 867020), (840, 811283), (917, 743160), (924, 737530), (1048, 650265), (1126, 605220), (1155, 590024), (1310, 520212), (1320, 516271), (1441, 472920), (1540, 442518), (1572, 433510), (1689, 403480), (1834, 371580), (1848, 368765), (1965, 346808), (2252, 302610), (2310, 295012), (2620, 260106), (2751, 247720), (2815, 242088), (2882, 236460), (3080, 221259), (3144, 216755), (3378, 201740), (3668, 185790), (3930, 173404), (3941, 172920), (4323, 157640), (4504, 151305), (4585, 148632), (4620, 147506), (5240, 130053), (5502, 123860), (5630, 121044), (5764, 118230), (6193, 110040), (6756, 100870), (7205, 94584), (7336, 92895), (7860, 86702), (7882, 86460), (8445, 80696), (8646, 78820), (9170, 74316), (9240, 73753), (10087, 67560), (11004, 61930), (11260, 60522), (11528, 59115), (11823, 57640), (12386, 55020), (13512, 50435), (13755, 49544), (14410, 47292), (15720, 43351), (15764, 43230), (16890, 40348), (17292, 39410), (18340, 37158), (18579, 36680), (19705, 34584), (20174, 33780), (21615, 31528), (22008, 30965), (22520, 30261), (23646, 28820), (24772, 27510)]