20555040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:275

約数の個数: 192

約数和(自身を含む): 75116160

約数和(自身を除く): 54561120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 96, 102, 110, 120, 132, 136, 160, 165, 170, 176, 187, 204, 220, 229, 240, 255, 264, 272, 330, 340, 352, 374, 408, 440, 458, 480, 510, 528, 544, 561, 660, 680, 687, 748, 816, 880, 916, 935, 1020, 1056, 1122, 1145, 1320, 1360, 1374, 1496, 1632, 1760, 1832, 1870, 2040, 2244, 2290, 2519, 2640, 2720, 2748, 2805, 2992, 3435, 3664, 3740, 3893, 4080, 4488, 4580, 5038, 5280, 5496, 5610, 5984, 6870, 7328, 7480, 7557, 7786, 8160, 8976, 9160, 10076, 10992, 11220, 11679, 12595, 13740, 14960, 15114, 15572, 17952, 18320, 19465, 20152, 21984, 22440, 23358, 25190, 27480, 29920, 30228, 31144, 36640, 37785, 38930, 40304, 42823, 44880, 46716, 50380, 54960, 58395, 60456, 62288, 75570, 77860, 80608, 85646, 89760, 93432, 100760, 109920, 116790, 120912, 124576, 128469, 151140, 155720, 171292, 186864, 201520, 214115, 233580, 241824, 256938, 302280, 311440, 342584, 373728, 403040, 428230, 467160, 513876, 604560, 622880, 642345, 685168, 856460, 934320, 1027752, 1209120, 1284690, 1370336, 1712920, 1868640, 2055504, 2569380, 3425840, 4111008, 5138760, 6851680, 10277520, 20555040]

約数ペア:

[(1, 20555040), (2, 10277520), (3, 6851680), (4, 5138760), (5, 4111008), (6, 3425840), (8, 2569380), (10, 2055504), (11, 1868640), (12, 1712920), (15, 1370336), (16, 1284690), (17, 1209120), (20, 1027752), (22, 934320), (24, 856460), (30, 685168), (32, 642345), (33, 622880), (34, 604560), (40, 513876), (44, 467160), (48, 428230), (51, 403040), (55, 373728), (60, 342584), (66, 311440), (68, 302280), (80, 256938), (85, 241824), (88, 233580), (96, 214115), (102, 201520), (110, 186864), (120, 171292), (132, 155720), (136, 151140), (160, 128469), (165, 124576), (170, 120912), (176, 116790), (187, 109920), (204, 100760), (220, 93432), (229, 89760), (240, 85646), (255, 80608), (264, 77860), (272, 75570), (330, 62288), (340, 60456), (352, 58395), (374, 54960), (408, 50380), (440, 46716), (458, 44880), (480, 42823), (510, 40304), (528, 38930), (544, 37785), (561, 36640), (660, 31144), (680, 30228), (687, 29920), (748, 27480), (816, 25190), (880, 23358), (916, 22440), (935, 21984), (1020, 20152), (1056, 19465), (1122, 18320), (1145, 17952), (1320, 15572), (1360, 15114), (1374, 14960), (1496, 13740), (1632, 12595), (1760, 11679), (1832, 11220), (1870, 10992), (2040, 10076), (2244, 9160), (2290, 8976), (2519, 8160), (2640, 7786), (2720, 7557), (2748, 7480), (2805, 7328), (2992, 6870), (3435, 5984), (3664, 5610), (3740, 5496), (3893, 5280), (4080, 5038), (4488, 4580)]