2153900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 5687136

約数和(自身を除く): 3533236

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 175, 181, 238, 340, 350, 362, 425, 476, 595, 700, 724, 850, 905, 1190, 1267, 1700, 1810, 2380, 2534, 2975, 3077, 3620, 4525, 5068, 5950, 6154, 6335, 9050, 11900, 12308, 12670, 15385, 18100, 21539, 25340, 30770, 31675, 43078, 61540, 63350, 76925, 86156, 107695, 126700, 153850, 215390, 307700, 430780, 538475, 1076950, 2153900]

約数ペア:

[(1, 2153900), (2, 1076950), (4, 538475), (5, 430780), (7, 307700), (10, 215390), (14, 153850), (17, 126700), (20, 107695), (25, 86156), (28, 76925), (34, 63350), (35, 61540), (50, 43078), (68, 31675), (70, 30770), (85, 25340), (100, 21539), (119, 18100), (140, 15385), (170, 12670), (175, 12308), (181, 11900), (238, 9050), (340, 6335), (350, 6154), (362, 5950), (425, 5068), (476, 4525), (595, 3620), (700, 3077), (724, 2975), (850, 2534), (905, 2380), (1190, 1810), (1267, 1700)]