19971600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:138

約数の個数: 240

約数和(自身を含む): 74727360

約数和(自身を除く): 54755760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 25, 30, 33, 34, 40, 44, 48, 50, 51, 55, 60, 66, 68, 75, 80, 85, 88, 89, 100, 102, 110, 120, 132, 136, 150, 165, 170, 176, 178, 187, 200, 204, 220, 240, 255, 264, 267, 272, 275, 300, 330, 340, 356, 374, 400, 408, 425, 440, 445, 510, 528, 534, 550, 561, 600, 660, 680, 712, 748, 816, 825, 850, 880, 890, 935, 979, 1020, 1068, 1100, 1122, 1200, 1275, 1320, 1335, 1360, 1424, 1496, 1513, 1650, 1700, 1780, 1870, 1958, 2040, 2136, 2200, 2225, 2244, 2550, 2640, 2670, 2805, 2937, 2992, 3026, 3300, 3400, 3560, 3740, 3916, 4080, 4272, 4400, 4450, 4488, 4539, 4675, 4895, 5100, 5340, 5610, 5874, 6052, 6600, 6675, 6800, 7120, 7480, 7565, 7832, 8900, 8976, 9078, 9350, 9790, 10200, 10680, 11220, 11748, 12104, 13200, 13350, 14025, 14685, 14960, 15130, 15664, 16643, 17800, 18156, 18700, 19580, 20400, 21360, 22440, 22695, 23496, 24208, 24475, 26700, 28050, 29370, 30260, 33286, 35600, 36312, 37400, 37825, 39160, 44880, 45390, 46992, 48950, 49929, 53400, 56100, 58740, 60520, 66572, 72624, 73425, 74800, 75650, 78320, 83215, 90780, 97900, 99858, 106800, 112200, 113475, 117480, 121040, 133144, 146850, 151300, 166430, 181560, 195800, 199716, 224400, 226950, 234960, 249645, 266288, 293700, 302600, 332860, 363120, 391600, 399432, 416075, 453900, 499290, 587400, 605200, 665720, 798864, 832150, 907800, 998580, 1174800, 1248225, 1331440, 1664300, 1815600, 1997160, 2496450, 3328600, 3994320, 4992900, 6657200, 9985800, 19971600]

約数ペア:

[(1, 19971600), (2, 9985800), (3, 6657200), (4, 4992900), (5, 3994320), (6, 3328600), (8, 2496450), (10, 1997160), (11, 1815600), (12, 1664300), (15, 1331440), (16, 1248225), (17, 1174800), (20, 998580), (22, 907800), (24, 832150), (25, 798864), (30, 665720), (33, 605200), (34, 587400), (40, 499290), (44, 453900), (48, 416075), (50, 399432), (51, 391600), (55, 363120), (60, 332860), (66, 302600), (68, 293700), (75, 266288), (80, 249645), (85, 234960), (88, 226950), (89, 224400), (100, 199716), (102, 195800), (110, 181560), (120, 166430), (132, 151300), (136, 146850), (150, 133144), (165, 121040), (170, 117480), (176, 113475), (178, 112200), (187, 106800), (200, 99858), (204, 97900), (220, 90780), (240, 83215), (255, 78320), (264, 75650), (267, 74800), (272, 73425), (275, 72624), (300, 66572), (330, 60520), (340, 58740), (356, 56100), (374, 53400), (400, 49929), (408, 48950), (425, 46992), (440, 45390), (445, 44880), (510, 39160), (528, 37825), (534, 37400), (550, 36312), (561, 35600), (600, 33286), (660, 30260), (680, 29370), (712, 28050), (748, 26700), (816, 24475), (825, 24208), (850, 23496), (880, 22695), (890, 22440), (935, 21360), (979, 20400), (1020, 19580), (1068, 18700), (1100, 18156), (1122, 17800), (1200, 16643), (1275, 15664), (1320, 15130), (1335, 14960), (1360, 14685), (1424, 14025), (1496, 13350), (1513, 13200), (1650, 12104), (1700, 11748), (1780, 11220), (1870, 10680), (1958, 10200), (2040, 9790), (2136, 9350), (2200, 9078), (2225, 8976), (2244, 8900), (2550, 7832), (2640, 7565), (2670, 7480), (2805, 7120), (2937, 6800), (2992, 6675), (3026, 6600), (3300, 6052), (3400, 5874), (3560, 5610), (3740, 5340), (3916, 5100), (4080, 4895), (4272, 4675), (4400, 4539), (4450, 4488)]