21502800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:219

約数の個数: 240

約数和(自身を含む): 83952960

約数和(自身を除く): 62450160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 27, 30, 33, 36, 40, 44, 45, 48, 50, 54, 55, 60, 66, 72, 75, 80, 88, 90, 99, 100, 108, 110, 120, 132, 135, 144, 150, 165, 176, 180, 181, 198, 200, 216, 220, 225, 240, 264, 270, 275, 297, 300, 330, 360, 362, 396, 400, 432, 440, 450, 495, 528, 540, 543, 550, 594, 600, 660, 675, 720, 724, 792, 825, 880, 900, 905, 990, 1080, 1086, 1100, 1188, 1200, 1320, 1350, 1448, 1485, 1584, 1629, 1650, 1800, 1810, 1980, 1991, 2160, 2172, 2200, 2376, 2475, 2640, 2700, 2715, 2896, 2970, 3258, 3300, 3600, 3620, 3960, 3982, 4344, 4400, 4525, 4752, 4887, 4950, 5400, 5430, 5940, 5973, 6516, 6600, 7240, 7425, 7920, 7964, 8145, 8688, 9050, 9774, 9900, 9955, 10800, 10860, 11880, 11946, 13032, 13200, 13575, 14480, 14850, 15928, 16290, 17919, 18100, 19548, 19800, 19910, 21720, 23760, 23892, 24435, 26064, 27150, 29700, 29865, 31856, 32580, 35838, 36200, 39096, 39600, 39820, 40725, 43440, 47784, 48870, 49775, 53757, 54300, 59400, 59730, 65160, 71676, 72400, 78192, 79640, 81450, 89595, 95568, 97740, 99550, 107514, 108600, 118800, 119460, 122175, 130320, 143352, 149325, 159280, 162900, 179190, 195480, 199100, 215028, 217200, 238920, 244350, 268785, 286704, 298650, 325800, 358380, 390960, 398200, 430056, 447975, 477840, 488700, 537570, 597300, 651600, 716760, 796400, 860112, 895950, 977400, 1075140, 1194600, 1343925, 1433520, 1791900, 1954800, 2150280, 2389200, 2687850, 3583800, 4300560, 5375700, 7167600, 10751400, 21502800]

約数ペア:

[(1, 21502800), (2, 10751400), (3, 7167600), (4, 5375700), (5, 4300560), (6, 3583800), (8, 2687850), (9, 2389200), (10, 2150280), (11, 1954800), (12, 1791900), (15, 1433520), (16, 1343925), (18, 1194600), (20, 1075140), (22, 977400), (24, 895950), (25, 860112), (27, 796400), (30, 716760), (33, 651600), (36, 597300), (40, 537570), (44, 488700), (45, 477840), (48, 447975), (50, 430056), (54, 398200), (55, 390960), (60, 358380), (66, 325800), (72, 298650), (75, 286704), (80, 268785), (88, 244350), (90, 238920), (99, 217200), (100, 215028), (108, 199100), (110, 195480), (120, 179190), (132, 162900), (135, 159280), (144, 149325), (150, 143352), (165, 130320), (176, 122175), (180, 119460), (181, 118800), (198, 108600), (200, 107514), (216, 99550), (220, 97740), (225, 95568), (240, 89595), (264, 81450), (270, 79640), (275, 78192), (297, 72400), (300, 71676), (330, 65160), (360, 59730), (362, 59400), (396, 54300), (400, 53757), (432, 49775), (440, 48870), (450, 47784), (495, 43440), (528, 40725), (540, 39820), (543, 39600), (550, 39096), (594, 36200), (600, 35838), (660, 32580), (675, 31856), (720, 29865), (724, 29700), (792, 27150), (825, 26064), (880, 24435), (900, 23892), (905, 23760), (990, 21720), (1080, 19910), (1086, 19800), (1100, 19548), (1188, 18100), (1200, 17919), (1320, 16290), (1350, 15928), (1448, 14850), (1485, 14480), (1584, 13575), (1629, 13200), (1650, 13032), (1800, 11946), (1810, 11880), (1980, 10860), (1991, 10800), (2160, 9955), (2172, 9900), (2200, 9774), (2376, 9050), (2475, 8688), (2640, 8145), (2700, 7964), (2715, 7920), (2896, 7425), (2970, 7240), (3258, 6600), (3300, 6516), (3600, 5973), (3620, 5940), (3960, 5430), (3982, 5400), (4344, 4950), (4400, 4887), (4525, 4752)]