20908805040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{29363}}^1$

素因数の和:29448

約数の個数: 240

約数和(自身を含む): 74978272512

約数和(自身を除く): 54069467472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 43, 45, 46, 48, 60, 69, 72, 80, 86, 90, 92, 115, 120, 129, 138, 144, 172, 180, 184, 207, 215, 230, 240, 258, 276, 344, 345, 360, 368, 387, 414, 430, 460, 516, 552, 645, 688, 690, 720, 774, 828, 860, 920, 989, 1032, 1035, 1104, 1290, 1380, 1548, 1656, 1720, 1840, 1935, 1978, 2064, 2070, 2580, 2760, 2967, 3096, 3312, 3440, 3870, 3956, 4140, 4945, 5160, 5520, 5934, 6192, 7740, 7912, 8280, 8901, 9890, 10320, 11868, 14835, 15480, 15824, 16560, 17802, 19780, 23736, 29363, 29670, 30960, 35604, 39560, 44505, 47472, 58726, 59340, 71208, 79120, 88089, 89010, 117452, 118680, 142416, 146815, 176178, 178020, 234904, 237360, 264267, 293630, 352356, 356040, 440445, 469808, 528534, 587260, 675349, 704712, 712080, 880890, 1057068, 1174520, 1262609, 1321335, 1350698, 1409424, 1761780, 2026047, 2114136, 2349040, 2525218, 2642670, 2701396, 3376745, 3523560, 3787827, 4052094, 4228272, 5050436, 5285340, 5402792, 6078141, 6313045, 6753490, 7047120, 7575654, 8104188, 10100872, 10130235, 10570680, 10805584, 11363481, 12156282, 12626090, 13506980, 15151308, 16208376, 18939135, 20201744, 20260470, 21141360, 22726962, 24312564, 25252180, 27013960, 29040007, 30302616, 30390705, 32416752, 37878270, 40520940, 45453924, 48625128, 50504360, 54027920, 56817405, 58080014, 60605232, 60781410, 75756540, 81041880, 87120021, 90907848, 97250256, 101008720, 113634810, 116160028, 121562820, 145200035, 151513080, 162083760, 174240042, 181815696, 227269620, 232320056, 243125640, 261360063, 290400070, 303026160, 348480084, 435600105, 454539240, 464640112, 486251280, 522720126, 580800140, 696960168, 871200210, 909078480, 1045440252, 1161600280, 1306800315, 1393920336, 1742400420, 2090880504, 2323200560, 2613600630, 3484800840, 4181761008, 5227201260, 6969601680, 10454402520, 20908805040]

約数ペア:

[(1, 20908805040), (2, 10454402520), (3, 6969601680), (4, 5227201260), (5, 4181761008), (6, 3484800840), (8, 2613600630), (9, 2323200560), (10, 2090880504), (12, 1742400420), (15, 1393920336), (16, 1306800315), (18, 1161600280), (20, 1045440252), (23, 909078480), (24, 871200210), (30, 696960168), (36, 580800140), (40, 522720126), (43, 486251280), (45, 464640112), (46, 454539240), (48, 435600105), (60, 348480084), (69, 303026160), (72, 290400070), (80, 261360063), (86, 243125640), (90, 232320056), (92, 227269620), (115, 181815696), (120, 174240042), (129, 162083760), (138, 151513080), (144, 145200035), (172, 121562820), (180, 116160028), (184, 113634810), (207, 101008720), (215, 97250256), (230, 90907848), (240, 87120021), (258, 81041880), (276, 75756540), (344, 60781410), (345, 60605232), (360, 58080014), (368, 56817405), (387, 54027920), (414, 50504360), (430, 48625128), (460, 45453924), (516, 40520940), (552, 37878270), (645, 32416752), (688, 30390705), (690, 30302616), (720, 29040007), (774, 27013960), (828, 25252180), (860, 24312564), (920, 22726962), (989, 21141360), (1032, 20260470), (1035, 20201744), (1104, 18939135), (1290, 16208376), (1380, 15151308), (1548, 13506980), (1656, 12626090), (1720, 12156282), (1840, 11363481), (1935, 10805584), (1978, 10570680), (2064, 10130235), (2070, 10100872), (2580, 8104188), (2760, 7575654), (2967, 7047120), (3096, 6753490), (3312, 6313045), (3440, 6078141), (3870, 5402792), (3956, 5285340), (4140, 5050436), (4945, 4228272), (5160, 4052094), (5520, 3787827), (5934, 3523560), (6192, 3376745), (7740, 2701396), (7912, 2642670), (8280, 2525218), (8901, 2349040), (9890, 2114136), (10320, 2026047), (11868, 1761780), (14835, 1409424), (15480, 1350698), (15824, 1321335), (16560, 1262609), (17802, 1174520), (19780, 1057068), (23736, 880890), (29363, 712080), (29670, 704712), (30960, 675349), (35604, 587260), (39560, 528534), (44505, 469808), (47472, 440445), (58726, 356040), (59340, 352356), (71208, 293630), (79120, 264267), (88089, 237360), (89010, 234904), (117452, 178020), (118680, 176178), (142416, 146815)]