2181900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{1039}}^1$

素因数の和:1063

約数の個数: 72

約数和(自身を含む): 7221760

約数和(自身を除く): 5039860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1039, 1050, 2078, 2100, 3117, 4156, 5195, 6234, 7273, 10390, 12468, 14546, 15585, 20780, 21819, 25975, 29092, 31170, 36365, 43638, 51950, 62340, 72730, 77925, 87276, 103900, 109095, 145460, 155850, 181825, 218190, 311700, 363650, 436380, 545475, 727300, 1090950, 2181900]

約数ペア:

[(1, 2181900), (2, 1090950), (3, 727300), (4, 545475), (5, 436380), (6, 363650), (7, 311700), (10, 218190), (12, 181825), (14, 155850), (15, 145460), (20, 109095), (21, 103900), (25, 87276), (28, 77925), (30, 72730), (35, 62340), (42, 51950), (50, 43638), (60, 36365), (70, 31170), (75, 29092), (84, 25975), (100, 21819), (105, 20780), (140, 15585), (150, 14546), (175, 12468), (210, 10390), (300, 7273), (350, 6234), (420, 5195), (525, 4156), (700, 3117), (1039, 2100), (1050, 2078)]