1728404920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:254

約数の個数: 256

約数和(自身を含む): 4758912000

約数和(自身を除く): 3030507080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 23, 38, 40, 44, 46, 55, 76, 88, 89, 92, 95, 101, 110, 115, 152, 178, 184, 190, 202, 209, 220, 230, 253, 356, 380, 404, 418, 437, 440, 445, 460, 505, 506, 712, 760, 808, 836, 874, 890, 920, 979, 1010, 1012, 1045, 1111, 1265, 1672, 1691, 1748, 1780, 1919, 1958, 2020, 2024, 2047, 2090, 2185, 2222, 2323, 2530, 3382, 3496, 3560, 3838, 3916, 4040, 4094, 4180, 4370, 4444, 4646, 4807, 4895, 5060, 5555, 6764, 7676, 7832, 8188, 8360, 8455, 8740, 8888, 8989, 9292, 9595, 9614, 9790, 10120, 10235, 11110, 11615, 13528, 15352, 16376, 16910, 17480, 17978, 18584, 18601, 19190, 19228, 19580, 20470, 21109, 22220, 22517, 23230, 24035, 25553, 33820, 35956, 37202, 38380, 38456, 38893, 39160, 40940, 42218, 44137, 44440, 44945, 45034, 46460, 48070, 51106, 67640, 71912, 74404, 76760, 77786, 81880, 84436, 88274, 89890, 90068, 92920, 93005, 96140, 98879, 102212, 105545, 112585, 127765, 148808, 155572, 168872, 170791, 176548, 179780, 180136, 186010, 192280, 194465, 197758, 204424, 206747, 211090, 220685, 225170, 255530, 311144, 341582, 353096, 359560, 372020, 388930, 395516, 413494, 422180, 427823, 441370, 450340, 485507, 494395, 511060, 683164, 744040, 777860, 791032, 826988, 844360, 853955, 855646, 882740, 900680, 971014, 988790, 1022120, 1033735, 1366328, 1555720, 1653976, 1707910, 1711292, 1765480, 1878701, 1942028, 1977580, 2067470, 2139115, 2274217, 2427535, 3415820, 3422584, 3757402, 3884056, 3928193, 3955160, 4134940, 4278230, 4548434, 4855070, 6831640, 7514804, 7856386, 8269880, 8556460, 9096868, 9393505, 9710140, 11371085, 15029608, 15712772, 17112920, 18193736, 18787010, 19420280, 19640965, 22742170, 31425544, 37574020, 39281930, 43210123, 45484340, 75148040, 78563860, 86420246, 90968680, 157127720, 172840492, 216050615, 345680984, 432101230, 864202460, 1728404920]

約数ペア:

[(1, 1728404920), (2, 864202460), (4, 432101230), (5, 345680984), (8, 216050615), (10, 172840492), (11, 157127720), (19, 90968680), (20, 86420246), (22, 78563860), (23, 75148040), (38, 45484340), (40, 43210123), (44, 39281930), (46, 37574020), (55, 31425544), (76, 22742170), (88, 19640965), (89, 19420280), (92, 18787010), (95, 18193736), (101, 17112920), (110, 15712772), (115, 15029608), (152, 11371085), (178, 9710140), (184, 9393505), (190, 9096868), (202, 8556460), (209, 8269880), (220, 7856386), (230, 7514804), (253, 6831640), (356, 4855070), (380, 4548434), (404, 4278230), (418, 4134940), (437, 3955160), (440, 3928193), (445, 3884056), (460, 3757402), (505, 3422584), (506, 3415820), (712, 2427535), (760, 2274217), (808, 2139115), (836, 2067470), (874, 1977580), (890, 1942028), (920, 1878701), (979, 1765480), (1010, 1711292), (1012, 1707910), (1045, 1653976), (1111, 1555720), (1265, 1366328), (1672, 1033735), (1691, 1022120), (1748, 988790), (1780, 971014), (1919, 900680), (1958, 882740), (2020, 855646), (2024, 853955), (2047, 844360), (2090, 826988), (2185, 791032), (2222, 777860), (2323, 744040), (2530, 683164), (3382, 511060), (3496, 494395), (3560, 485507), (3838, 450340), (3916, 441370), (4040, 427823), (4094, 422180), (4180, 413494), (4370, 395516), (4444, 388930), (4646, 372020), (4807, 359560), (4895, 353096), (5060, 341582), (5555, 311144), (6764, 255530), (7676, 225170), (7832, 220685), (8188, 211090), (8360, 206747), (8455, 204424), (8740, 197758), (8888, 194465), (8989, 192280), (9292, 186010), (9595, 180136), (9614, 179780), (9790, 176548), (10120, 170791), (10235, 168872), (11110, 155572), (11615, 148808), (13528, 127765), (15352, 112585), (16376, 105545), (16910, 102212), (17480, 98879), (17978, 96140), (18584, 93005), (18601, 92920), (19190, 90068), (19228, 89890), (19580, 88274), (20470, 84436), (21109, 81880), (22220, 77786), (22517, 76760), (23230, 74404), (24035, 71912), (25553, 67640), (33820, 51106), (35956, 48070), (37202, 46460), (38380, 45034), (38456, 44945), (38893, 44440), (39160, 44137), (40940, 42218)]