20172652800

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{3739}}^1$

素因数の和:4049

約数の個数: 216

約数和(自身を含む): 66828743520

約数和(自身を除く): 46656090720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 200, 240, 256, 281, 300, 320, 384, 400, 480, 562, 600, 640, 768, 800, 843, 960, 1124, 1200, 1280, 1405, 1600, 1686, 1920, 2248, 2400, 2810, 3200, 3372, 3739, 3840, 4215, 4496, 4800, 5620, 6400, 6744, 7025, 7478, 8430, 8992, 9600, 11217, 11240, 13488, 14050, 14956, 16860, 17984, 18695, 19200, 21075, 22434, 22480, 26976, 28100, 29912, 33720, 35968, 37390, 42150, 44868, 44960, 53952, 56085, 56200, 59824, 67440, 71936, 74780, 84300, 89736, 89920, 93475, 107904, 112170, 112400, 119648, 134880, 149560, 168600, 179472, 179840, 186950, 215808, 224340, 224800, 239296, 269760, 280425, 299120, 337200, 358944, 359680, 373900, 448680, 449600, 478592, 539520, 560850, 598240, 674400, 717888, 747800, 897360, 899200, 957184, 1050659, 1079040, 1121700, 1196480, 1348800, 1435776, 1495600, 1794720, 1798400, 2101318, 2243400, 2392960, 2697600, 2871552, 2991200, 3151977, 3589440, 4202636, 4486800, 4785920, 5253295, 5395200, 5982400, 6303954, 7178880, 8405272, 8973600, 10506590, 11964800, 12607908, 14357760, 15759885, 16810544, 17947200, 21013180, 23929600, 25215816, 26266475, 31519770, 33621088, 35894400, 42026360, 50431632, 52532950, 63039540, 67242176, 71788800, 78799425, 84052720, 100863264, 105065900, 126079080, 134484352, 157598850, 168105440, 201726528, 210131800, 252158160, 268968704, 315197700, 336210880, 403453056, 420263600, 504316320, 630395400, 672421760, 806906112, 840527200, 1008632640, 1260790800, 1344843520, 1681054400, 2017265280, 2521581600, 3362108800, 4034530560, 5043163200, 6724217600, 10086326400, 20172652800]

約数ペア:

[(1, 20172652800), (2, 10086326400), (3, 6724217600), (4, 5043163200), (5, 4034530560), (6, 3362108800), (8, 2521581600), (10, 2017265280), (12, 1681054400), (15, 1344843520), (16, 1260790800), (20, 1008632640), (24, 840527200), (25, 806906112), (30, 672421760), (32, 630395400), (40, 504316320), (48, 420263600), (50, 403453056), (60, 336210880), (64, 315197700), (75, 268968704), (80, 252158160), (96, 210131800), (100, 201726528), (120, 168105440), (128, 157598850), (150, 134484352), (160, 126079080), (192, 105065900), (200, 100863264), (240, 84052720), (256, 78799425), (281, 71788800), (300, 67242176), (320, 63039540), (384, 52532950), (400, 50431632), (480, 42026360), (562, 35894400), (600, 33621088), (640, 31519770), (768, 26266475), (800, 25215816), (843, 23929600), (960, 21013180), (1124, 17947200), (1200, 16810544), (1280, 15759885), (1405, 14357760), (1600, 12607908), (1686, 11964800), (1920, 10506590), (2248, 8973600), (2400, 8405272), (2810, 7178880), (3200, 6303954), (3372, 5982400), (3739, 5395200), (3840, 5253295), (4215, 4785920), (4496, 4486800), (4800, 4202636), (5620, 3589440), (6400, 3151977), (6744, 2991200), (7025, 2871552), (7478, 2697600), (8430, 2392960), (8992, 2243400), (9600, 2101318), (11217, 1798400), (11240, 1794720), (13488, 1495600), (14050, 1435776), (14956, 1348800), (16860, 1196480), (17984, 1121700), (18695, 1079040), (19200, 1050659), (21075, 957184), (22434, 899200), (22480, 897360), (26976, 747800), (28100, 717888), (29912, 674400), (33720, 598240), (35968, 560850), (37390, 539520), (42150, 478592), (44868, 449600), (44960, 448680), (53952, 373900), (56085, 359680), (56200, 358944), (59824, 337200), (67440, 299120), (71936, 280425), (74780, 269760), (84300, 239296), (89736, 224800), (89920, 224340), (93475, 215808), (107904, 186950), (112170, 179840), (112400, 179472), (119648, 168600), (134880, 149560)]