20954803480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:694

約数の個数: 192

約数和(自身を含む): 52822584000

約数和(自身を除く): 31867780520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 169, 185, 199, 260, 296, 338, 370, 398, 421, 481, 520, 676, 740, 796, 842, 845, 962, 995, 1352, 1480, 1592, 1684, 1690, 1924, 1990, 2105, 2405, 2587, 3368, 3380, 3848, 3980, 4210, 4810, 5174, 5473, 6253, 6760, 7363, 7960, 8420, 9620, 10348, 10946, 12506, 12935, 14726, 15577, 16840, 19240, 20696, 21892, 25012, 25870, 27365, 29452, 31154, 31265, 33631, 36815, 43784, 50024, 51740, 54730, 58904, 62308, 62530, 67262, 71149, 73630, 77885, 83779, 95719, 103480, 109460, 124616, 125060, 134524, 142298, 147260, 155770, 167558, 168155, 191438, 202501, 218920, 250120, 269048, 284596, 294520, 311540, 335116, 336310, 355745, 382876, 405002, 418895, 478595, 569192, 623080, 670232, 672620, 711490, 765752, 810004, 837790, 957190, 1012505, 1089127, 1244347, 1345240, 1422980, 1620008, 1675580, 1914380, 2025010, 2178254, 2488694, 2632513, 2845960, 3099823, 3351160, 3828760, 4050020, 4356508, 4977388, 5265026, 5445635, 6199646, 6221735, 8100040, 8713016, 9954776, 10530052, 10891270, 12399292, 12443470, 13162565, 14158651, 15499115, 21060104, 21782540, 24798584, 24886940, 26325130, 28317302, 30998230, 40297699, 43565080, 49773880, 52650260, 56634604, 61996460, 70793255, 80595398, 105300520, 113269208, 123992920, 141586510, 161190796, 201488495, 283173020, 322381592, 402976990, 523870087, 566346040, 805953980, 1047740174, 1611907960, 2095480348, 2619350435, 4190960696, 5238700870, 10477401740, 20954803480]

約数ペア:

[(1, 20954803480), (2, 10477401740), (4, 5238700870), (5, 4190960696), (8, 2619350435), (10, 2095480348), (13, 1611907960), (20, 1047740174), (26, 805953980), (37, 566346040), (40, 523870087), (52, 402976990), (65, 322381592), (74, 283173020), (104, 201488495), (130, 161190796), (148, 141586510), (169, 123992920), (185, 113269208), (199, 105300520), (260, 80595398), (296, 70793255), (338, 61996460), (370, 56634604), (398, 52650260), (421, 49773880), (481, 43565080), (520, 40297699), (676, 30998230), (740, 28317302), (796, 26325130), (842, 24886940), (845, 24798584), (962, 21782540), (995, 21060104), (1352, 15499115), (1480, 14158651), (1592, 13162565), (1684, 12443470), (1690, 12399292), (1924, 10891270), (1990, 10530052), (2105, 9954776), (2405, 8713016), (2587, 8100040), (3368, 6221735), (3380, 6199646), (3848, 5445635), (3980, 5265026), (4210, 4977388), (4810, 4356508), (5174, 4050020), (5473, 3828760), (6253, 3351160), (6760, 3099823), (7363, 2845960), (7960, 2632513), (8420, 2488694), (9620, 2178254), (10348, 2025010), (10946, 1914380), (12506, 1675580), (12935, 1620008), (14726, 1422980), (15577, 1345240), (16840, 1244347), (19240, 1089127), (20696, 1012505), (21892, 957190), (25012, 837790), (25870, 810004), (27365, 765752), (29452, 711490), (31154, 672620), (31265, 670232), (33631, 623080), (36815, 569192), (43784, 478595), (50024, 418895), (51740, 405002), (54730, 382876), (58904, 355745), (62308, 336310), (62530, 335116), (67262, 311540), (71149, 294520), (73630, 284596), (77885, 269048), (83779, 250120), (95719, 218920), (103480, 202501), (109460, 191438), (124616, 168155), (125060, 167558), (134524, 155770), (142298, 147260)]