1978975440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12437}}^1$

素因数の和:12486

約数の個数: 240

約数和(自身を含む): 7578921168

約数和(自身を除く): 5599945728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 130, 136, 144, 153, 156, 170, 180, 195, 204, 208, 221, 234, 240, 255, 260, 272, 306, 312, 340, 360, 390, 408, 442, 468, 510, 520, 585, 612, 624, 663, 680, 720, 765, 780, 816, 884, 936, 1020, 1040, 1105, 1170, 1224, 1326, 1360, 1530, 1560, 1768, 1872, 1989, 2040, 2210, 2340, 2448, 2652, 3060, 3120, 3315, 3536, 3978, 4080, 4420, 4680, 5304, 6120, 6630, 7956, 8840, 9360, 9945, 10608, 12240, 12437, 13260, 15912, 17680, 19890, 24874, 26520, 31824, 37311, 39780, 49748, 53040, 62185, 74622, 79560, 99496, 111933, 124370, 149244, 159120, 161681, 186555, 198992, 211429, 223866, 248740, 298488, 323362, 373110, 422858, 447732, 485043, 497480, 559665, 596976, 634287, 646724, 746220, 808405, 845716, 895464, 970086, 994960, 1057145, 1119330, 1268574, 1293448, 1455129, 1492440, 1616810, 1691432, 1790928, 1902861, 1940172, 2114290, 2238660, 2425215, 2537148, 2586896, 2748577, 2910258, 2984880, 3171435, 3233620, 3382864, 3805722, 3880344, 4228580, 4477320, 4850430, 5074296, 5497154, 5820516, 6342870, 6467240, 7275645, 7611444, 7760688, 8245731, 8457160, 8954640, 9514305, 9700860, 10148592, 10994308, 11641032, 12685740, 12934480, 13742885, 14551290, 15222888, 16491462, 16914320, 19028610, 19401720, 21988616, 23282064, 24737193, 25371480, 27485770, 29102580, 30445776, 32982924, 38057220, 38803440, 41228655, 43977232, 49474386, 50742960, 54971540, 58205160, 65965848, 76114440, 82457310, 98948772, 109943080, 116410320, 123685965, 131931696, 152228880, 164914620, 197897544, 219886160, 247371930, 329829240, 395795088, 494743860, 659658480, 989487720, 1978975440]

約数ペア:

[(1, 1978975440), (2, 989487720), (3, 659658480), (4, 494743860), (5, 395795088), (6, 329829240), (8, 247371930), (9, 219886160), (10, 197897544), (12, 164914620), (13, 152228880), (15, 131931696), (16, 123685965), (17, 116410320), (18, 109943080), (20, 98948772), (24, 82457310), (26, 76114440), (30, 65965848), (34, 58205160), (36, 54971540), (39, 50742960), (40, 49474386), (45, 43977232), (48, 41228655), (51, 38803440), (52, 38057220), (60, 32982924), (65, 30445776), (68, 29102580), (72, 27485770), (78, 25371480), (80, 24737193), (85, 23282064), (90, 21988616), (102, 19401720), (104, 19028610), (117, 16914320), (120, 16491462), (130, 15222888), (136, 14551290), (144, 13742885), (153, 12934480), (156, 12685740), (170, 11641032), (180, 10994308), (195, 10148592), (204, 9700860), (208, 9514305), (221, 8954640), (234, 8457160), (240, 8245731), (255, 7760688), (260, 7611444), (272, 7275645), (306, 6467240), (312, 6342870), (340, 5820516), (360, 5497154), (390, 5074296), (408, 4850430), (442, 4477320), (468, 4228580), (510, 3880344), (520, 3805722), (585, 3382864), (612, 3233620), (624, 3171435), (663, 2984880), (680, 2910258), (720, 2748577), (765, 2586896), (780, 2537148), (816, 2425215), (884, 2238660), (936, 2114290), (1020, 1940172), (1040, 1902861), (1105, 1790928), (1170, 1691432), (1224, 1616810), (1326, 1492440), (1360, 1455129), (1530, 1293448), (1560, 1268574), (1768, 1119330), (1872, 1057145), (1989, 994960), (2040, 970086), (2210, 895464), (2340, 845716), (2448, 808405), (2652, 746220), (3060, 646724), (3120, 634287), (3315, 596976), (3536, 559665), (3978, 497480), (4080, 485043), (4420, 447732), (4680, 422858), (5304, 373110), (6120, 323362), (6630, 298488), (7956, 248740), (8840, 223866), (9360, 211429), (9945, 198992), (10608, 186555), (12240, 161681), (12437, 159120), (13260, 149244), (15912, 124370), (17680, 111933), (19890, 99496), (24874, 79560), (26520, 74622), (31824, 62185), (37311, 53040), (39780, 49748)]