19656871920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{11783}}^1$

素因数の和:12140

約数の個数: 240

約数和(自身を含む): 75679299072

約数和(自身を除く): 56022427152

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, 240, 252, 280, 315, 331, 336, 360, 420, 504, 560, 630, 662, 720, 840, 993, 1008, 1260, 1324, 1655, 1680, 1986, 2317, 2520, 2648, 2979, 3310, 3972, 4634, 4965, 5040, 5296, 5958, 6620, 6951, 7944, 9268, 9930, 11585, 11783, 11916, 13240, 13902, 14895, 15888, 18536, 19860, 20853, 23170, 23566, 23832, 26480, 27804, 29790, 34755, 35349, 37072, 39720, 41706, 46340, 47132, 47664, 55608, 58915, 59580, 69510, 70698, 79440, 82481, 83412, 92680, 94264, 104265, 106047, 111216, 117830, 119160, 139020, 141396, 164962, 166824, 176745, 185360, 188528, 208530, 212094, 235660, 238320, 247443, 278040, 282792, 329924, 333648, 353490, 412405, 417060, 424188, 471320, 494886, 530235, 556080, 565584, 659848, 706980, 742329, 824810, 834120, 848376, 942640, 989772, 1060470, 1237215, 1319696, 1413960, 1484658, 1649620, 1668240, 1696752, 1979544, 2120940, 2474430, 2827920, 2969316, 3299240, 3711645, 3900173, 3959088, 4241880, 4948860, 5938632, 6598480, 7423290, 7800346, 8483760, 9897720, 11700519, 11877264, 14846580, 15600692, 19500865, 19795440, 23401038, 27301211, 29693160, 31201384, 35101557, 39001730, 46802076, 54602422, 58502595, 59386320, 62402768, 70203114, 78003460, 81903633, 93604152, 109204844, 117005190, 136506055, 140406228, 156006920, 163807266, 175507785, 187208304, 218409688, 234010380, 245710899, 273012110, 280812456, 312013840, 327614532, 351015570, 409518165, 436819376, 468020760, 491421798, 546024220, 561624912, 655229064, 702031140, 819036330, 936041520, 982843596, 1092048440, 1228554495, 1310458128, 1404062280, 1638072660, 1965687192, 2184096880, 2457108990, 2808124560, 3276145320, 3931374384, 4914217980, 6552290640, 9828435960, 19656871920]

約数ペア:

[(1, 19656871920), (2, 9828435960), (3, 6552290640), (4, 4914217980), (5, 3931374384), (6, 3276145320), (7, 2808124560), (8, 2457108990), (9, 2184096880), (10, 1965687192), (12, 1638072660), (14, 1404062280), (15, 1310458128), (16, 1228554495), (18, 1092048440), (20, 982843596), (21, 936041520), (24, 819036330), (28, 702031140), (30, 655229064), (35, 561624912), (36, 546024220), (40, 491421798), (42, 468020760), (45, 436819376), (48, 409518165), (56, 351015570), (60, 327614532), (63, 312013840), (70, 280812456), (72, 273012110), (80, 245710899), (84, 234010380), (90, 218409688), (105, 187208304), (112, 175507785), (120, 163807266), (126, 156006920), (140, 140406228), (144, 136506055), (168, 117005190), (180, 109204844), (210, 93604152), (240, 81903633), (252, 78003460), (280, 70203114), (315, 62402768), (331, 59386320), (336, 58502595), (360, 54602422), (420, 46802076), (504, 39001730), (560, 35101557), (630, 31201384), (662, 29693160), (720, 27301211), (840, 23401038), (993, 19795440), (1008, 19500865), (1260, 15600692), (1324, 14846580), (1655, 11877264), (1680, 11700519), (1986, 9897720), (2317, 8483760), (2520, 7800346), (2648, 7423290), (2979, 6598480), (3310, 5938632), (3972, 4948860), (4634, 4241880), (4965, 3959088), (5040, 3900173), (5296, 3711645), (5958, 3299240), (6620, 2969316), (6951, 2827920), (7944, 2474430), (9268, 2120940), (9930, 1979544), (11585, 1696752), (11783, 1668240), (11916, 1649620), (13240, 1484658), (13902, 1413960), (14895, 1319696), (15888, 1237215), (18536, 1060470), (19860, 989772), (20853, 942640), (23170, 848376), (23566, 834120), (23832, 824810), (26480, 742329), (27804, 706980), (29790, 659848), (34755, 565584), (35349, 556080), (37072, 530235), (39720, 494886), (41706, 471320), (46340, 424188), (47132, 417060), (47664, 412405), (55608, 353490), (58915, 333648), (59580, 329924), (69510, 282792), (70698, 278040), (79440, 247443), (82481, 238320), (83412, 235660), (92680, 212094), (94264, 208530), (104265, 188528), (106047, 185360), (111216, 176745), (117830, 166824), (119160, 164962), (139020, 141396)]