20309760

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 73657584

約数和(自身を除く): 53347824

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 43, 45, 48, 60, 64, 72, 80, 82, 86, 90, 96, 120, 123, 128, 129, 144, 160, 164, 172, 180, 192, 205, 215, 240, 246, 256, 258, 288, 320, 328, 344, 360, 369, 384, 387, 410, 430, 480, 492, 516, 576, 615, 640, 645, 656, 688, 720, 738, 768, 774, 820, 860, 960, 984, 1032, 1152, 1230, 1280, 1290, 1312, 1376, 1440, 1476, 1548, 1640, 1720, 1763, 1845, 1920, 1935, 1968, 2064, 2304, 2460, 2580, 2624, 2752, 2880, 2952, 3096, 3280, 3440, 3526, 3690, 3840, 3870, 3936, 4128, 4920, 5160, 5248, 5289, 5504, 5760, 5904, 6192, 6560, 6880, 7052, 7380, 7740, 7872, 8256, 8815, 9840, 10320, 10496, 10578, 11008, 11520, 11808, 12384, 13120, 13760, 14104, 14760, 15480, 15744, 15867, 16512, 17630, 19680, 20640, 21156, 23616, 24768, 26240, 26445, 27520, 28208, 29520, 30960, 31488, 31734, 33024, 35260, 39360, 41280, 42312, 47232, 49536, 52480, 52890, 55040, 56416, 59040, 61920, 63468, 70520, 78720, 79335, 82560, 84624, 94464, 99072, 105780, 112832, 118080, 123840, 126936, 141040, 157440, 158670, 165120, 169248, 211560, 225664, 236160, 247680, 253872, 282080, 317340, 338496, 423120, 451328, 472320, 495360, 507744, 564160, 634680, 676992, 846240, 1015488, 1128320, 1269360, 1353984, 1692480, 2030976, 2256640, 2538720, 3384960, 4061952, 5077440, 6769920, 10154880, 20309760]

約数ペア:

[(1, 20309760), (2, 10154880), (3, 6769920), (4, 5077440), (5, 4061952), (6, 3384960), (8, 2538720), (9, 2256640), (10, 2030976), (12, 1692480), (15, 1353984), (16, 1269360), (18, 1128320), (20, 1015488), (24, 846240), (30, 676992), (32, 634680), (36, 564160), (40, 507744), (41, 495360), (43, 472320), (45, 451328), (48, 423120), (60, 338496), (64, 317340), (72, 282080), (80, 253872), (82, 247680), (86, 236160), (90, 225664), (96, 211560), (120, 169248), (123, 165120), (128, 158670), (129, 157440), (144, 141040), (160, 126936), (164, 123840), (172, 118080), (180, 112832), (192, 105780), (205, 99072), (215, 94464), (240, 84624), (246, 82560), (256, 79335), (258, 78720), (288, 70520), (320, 63468), (328, 61920), (344, 59040), (360, 56416), (369, 55040), (384, 52890), (387, 52480), (410, 49536), (430, 47232), (480, 42312), (492, 41280), (516, 39360), (576, 35260), (615, 33024), (640, 31734), (645, 31488), (656, 30960), (688, 29520), (720, 28208), (738, 27520), (768, 26445), (774, 26240), (820, 24768), (860, 23616), (960, 21156), (984, 20640), (1032, 19680), (1152, 17630), (1230, 16512), (1280, 15867), (1290, 15744), (1312, 15480), (1376, 14760), (1440, 14104), (1476, 13760), (1548, 13120), (1640, 12384), (1720, 11808), (1763, 11520), (1845, 11008), (1920, 10578), (1935, 10496), (1968, 10320), (2064, 9840), (2304, 8815), (2460, 8256), (2580, 7872), (2624, 7740), (2752, 7380), (2880, 7052), (2952, 6880), (3096, 6560), (3280, 6192), (3440, 5904), (3526, 5760), (3690, 5504), (3840, 5289), (3870, 5248), (3936, 5160), (4128, 4920)]