18879000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 256

約数和(自身を含む): 71884800

約数和(自身を除く): 53005800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 29, 30, 31, 35, 40, 42, 50, 56, 58, 60, 62, 70, 75, 84, 87, 93, 100, 105, 116, 120, 124, 125, 140, 145, 150, 155, 168, 174, 175, 186, 200, 203, 210, 217, 232, 248, 250, 280, 290, 300, 310, 348, 350, 372, 375, 406, 420, 434, 435, 465, 500, 525, 580, 600, 609, 620, 651, 696, 700, 725, 744, 750, 775, 812, 840, 868, 870, 875, 899, 930, 1000, 1015, 1050, 1085, 1160, 1218, 1240, 1302, 1400, 1450, 1500, 1550, 1624, 1736, 1740, 1750, 1798, 1860, 2030, 2100, 2170, 2175, 2325, 2436, 2604, 2625, 2697, 2900, 3000, 3045, 3100, 3255, 3480, 3500, 3596, 3625, 3720, 3875, 4060, 4200, 4340, 4350, 4495, 4650, 4872, 5075, 5208, 5250, 5394, 5425, 5800, 6090, 6200, 6293, 6510, 7000, 7192, 7250, 7750, 8120, 8680, 8700, 8990, 9300, 10150, 10500, 10788, 10850, 10875, 11625, 12180, 12586, 13020, 13485, 14500, 15225, 15500, 16275, 17400, 17980, 18600, 18879, 20300, 21000, 21576, 21700, 21750, 22475, 23250, 24360, 25172, 25375, 26040, 26970, 27125, 29000, 30450, 31000, 31465, 32550, 35960, 37758, 40600, 43400, 43500, 44950, 46500, 50344, 50750, 53940, 54250, 60900, 62930, 65100, 67425, 75516, 76125, 81375, 87000, 89900, 93000, 94395, 101500, 107880, 108500, 112375, 121800, 125860, 130200, 134850, 151032, 152250, 157325, 162750, 179800, 188790, 203000, 217000, 224750, 251720, 269700, 304500, 314650, 325500, 337125, 377580, 449500, 471975, 539400, 609000, 629300, 651000, 674250, 755160, 786625, 899000, 943950, 1258600, 1348500, 1573250, 1887900, 2359875, 2697000, 3146500, 3775800, 4719750, 6293000, 9439500, 18879000]

約数ペア:

[(1, 18879000), (2, 9439500), (3, 6293000), (4, 4719750), (5, 3775800), (6, 3146500), (7, 2697000), (8, 2359875), (10, 1887900), (12, 1573250), (14, 1348500), (15, 1258600), (20, 943950), (21, 899000), (24, 786625), (25, 755160), (28, 674250), (29, 651000), (30, 629300), (31, 609000), (35, 539400), (40, 471975), (42, 449500), (50, 377580), (56, 337125), (58, 325500), (60, 314650), (62, 304500), (70, 269700), (75, 251720), (84, 224750), (87, 217000), (93, 203000), (100, 188790), (105, 179800), (116, 162750), (120, 157325), (124, 152250), (125, 151032), (140, 134850), (145, 130200), (150, 125860), (155, 121800), (168, 112375), (174, 108500), (175, 107880), (186, 101500), (200, 94395), (203, 93000), (210, 89900), (217, 87000), (232, 81375), (248, 76125), (250, 75516), (280, 67425), (290, 65100), (300, 62930), (310, 60900), (348, 54250), (350, 53940), (372, 50750), (375, 50344), (406, 46500), (420, 44950), (434, 43500), (435, 43400), (465, 40600), (500, 37758), (525, 35960), (580, 32550), (600, 31465), (609, 31000), (620, 30450), (651, 29000), (696, 27125), (700, 26970), (725, 26040), (744, 25375), (750, 25172), (775, 24360), (812, 23250), (840, 22475), (868, 21750), (870, 21700), (875, 21576), (899, 21000), (930, 20300), (1000, 18879), (1015, 18600), (1050, 17980), (1085, 17400), (1160, 16275), (1218, 15500), (1240, 15225), (1302, 14500), (1400, 13485), (1450, 13020), (1500, 12586), (1550, 12180), (1624, 11625), (1736, 10875), (1740, 10850), (1750, 10788), (1798, 10500), (1860, 10150), (2030, 9300), (2100, 8990), (2170, 8700), (2175, 8680), (2325, 8120), (2436, 7750), (2604, 7250), (2625, 7192), (2697, 7000), (2900, 6510), (3000, 6293), (3045, 6200), (3100, 6090), (3255, 5800), (3480, 5425), (3500, 5394), (3596, 5250), (3625, 5208), (3720, 5075), (3875, 4872), (4060, 4650), (4200, 4495), (4340, 4350)]