661202640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1033}}^1$

素因数の和:1186

約数の個数: 240

約数和(自身を含む): 2560217088

約数和(自身を除く): 1899014448

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, 127, 140, 144, 168, 180, 210, 240, 252, 254, 280, 315, 336, 360, 381, 420, 504, 508, 560, 630, 635, 720, 762, 840, 889, 1008, 1016, 1033, 1143, 1260, 1270, 1524, 1680, 1778, 1905, 2032, 2066, 2286, 2520, 2540, 2667, 3048, 3099, 3556, 3810, 4132, 4445, 4572, 5040, 5080, 5165, 5334, 5715, 6096, 6198, 7112, 7231, 7620, 8001, 8264, 8890, 9144, 9297, 10160, 10330, 10668, 11430, 12396, 13335, 14224, 14462, 15240, 15495, 16002, 16528, 17780, 18288, 18594, 20660, 21336, 21693, 22860, 24792, 26670, 28924, 30480, 30990, 32004, 35560, 36155, 37188, 40005, 41320, 42672, 43386, 45720, 46485, 49584, 53340, 57848, 61980, 64008, 65079, 71120, 72310, 74376, 80010, 82640, 86772, 91440, 92970, 106680, 108465, 115696, 123960, 128016, 130158, 131191, 144620, 148752, 160020, 173544, 185940, 213360, 216930, 247920, 260316, 262382, 289240, 320040, 325395, 347088, 371880, 393573, 433860, 520632, 524764, 578480, 640080, 650790, 655955, 743760, 787146, 867720, 918337, 1041264, 1049528, 1180719, 1301580, 1311910, 1574292, 1735440, 1836674, 1967865, 2099056, 2361438, 2603160, 2623820, 2755011, 3148584, 3673348, 3935730, 4591685, 4722876, 5206320, 5247640, 5510022, 5903595, 6297168, 7346696, 7871460, 8265033, 9183370, 9445752, 10495280, 11020044, 11807190, 13775055, 14693392, 15742920, 16530066, 18366740, 18891504, 22040088, 23614380, 27550110, 31485840, 33060132, 36733480, 41325165, 44080176, 47228760, 55100220, 66120264, 73466960, 82650330, 94457520, 110200440, 132240528, 165300660, 220400880, 330601320, 661202640]

約数ペア:

[(1, 661202640), (2, 330601320), (3, 220400880), (4, 165300660), (5, 132240528), (6, 110200440), (7, 94457520), (8, 82650330), (9, 73466960), (10, 66120264), (12, 55100220), (14, 47228760), (15, 44080176), (16, 41325165), (18, 36733480), (20, 33060132), (21, 31485840), (24, 27550110), (28, 23614380), (30, 22040088), (35, 18891504), (36, 18366740), (40, 16530066), (42, 15742920), (45, 14693392), (48, 13775055), (56, 11807190), (60, 11020044), (63, 10495280), (70, 9445752), (72, 9183370), (80, 8265033), (84, 7871460), (90, 7346696), (105, 6297168), (112, 5903595), (120, 5510022), (126, 5247640), (127, 5206320), (140, 4722876), (144, 4591685), (168, 3935730), (180, 3673348), (210, 3148584), (240, 2755011), (252, 2623820), (254, 2603160), (280, 2361438), (315, 2099056), (336, 1967865), (360, 1836674), (381, 1735440), (420, 1574292), (504, 1311910), (508, 1301580), (560, 1180719), (630, 1049528), (635, 1041264), (720, 918337), (762, 867720), (840, 787146), (889, 743760), (1008, 655955), (1016, 650790), (1033, 640080), (1143, 578480), (1260, 524764), (1270, 520632), (1524, 433860), (1680, 393573), (1778, 371880), (1905, 347088), (2032, 325395), (2066, 320040), (2286, 289240), (2520, 262382), (2540, 260316), (2667, 247920), (3048, 216930), (3099, 213360), (3556, 185940), (3810, 173544), (4132, 160020), (4445, 148752), (4572, 144620), (5040, 131191), (5080, 130158), (5165, 128016), (5334, 123960), (5715, 115696), (6096, 108465), (6198, 106680), (7112, 92970), (7231, 91440), (7620, 86772), (8001, 82640), (8264, 80010), (8890, 74376), (9144, 72310), (9297, 71120), (10160, 65079), (10330, 64008), (10668, 61980), (11430, 57848), (12396, 53340), (13335, 49584), (14224, 46485), (14462, 45720), (15240, 43386), (15495, 42672), (16002, 41320), (16528, 40005), (17780, 37188), (18288, 36155), (18594, 35560), (20660, 32004), (21336, 30990), (21693, 30480), (22860, 28924), (24792, 26670)]