21266000

素因数分解:

$2^4\times 5^3\times 7^3\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 160

約数和(自身を含む): 61900800

約数和(自身を除く): 40634800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 49, 50, 56, 62, 70, 80, 98, 100, 112, 124, 125, 140, 155, 175, 196, 200, 217, 245, 248, 250, 280, 310, 343, 350, 392, 400, 434, 490, 496, 500, 560, 620, 686, 700, 775, 784, 868, 875, 980, 1000, 1085, 1225, 1240, 1372, 1400, 1519, 1550, 1715, 1736, 1750, 1960, 2000, 2170, 2450, 2480, 2744, 2800, 3038, 3100, 3430, 3472, 3500, 3875, 3920, 4340, 4900, 5425, 5488, 6076, 6125, 6200, 6860, 7000, 7595, 7750, 8575, 8680, 9800, 10633, 10850, 12152, 12250, 12400, 13720, 14000, 15190, 15500, 17150, 17360, 19600, 21266, 21700, 24304, 24500, 27125, 27440, 30380, 31000, 34300, 37975, 42532, 42875, 43400, 49000, 53165, 54250, 60760, 62000, 68600, 75950, 85064, 85750, 86800, 98000, 106330, 108500, 121520, 137200, 151900, 170128, 171500, 189875, 212660, 217000, 265825, 303800, 343000, 379750, 425320, 434000, 531650, 607600, 686000, 759500, 850640, 1063300, 1329125, 1519000, 2126600, 2658250, 3038000, 4253200, 5316500, 10633000, 21266000]

約数ペア:

[(1, 21266000), (2, 10633000), (4, 5316500), (5, 4253200), (7, 3038000), (8, 2658250), (10, 2126600), (14, 1519000), (16, 1329125), (20, 1063300), (25, 850640), (28, 759500), (31, 686000), (35, 607600), (40, 531650), (49, 434000), (50, 425320), (56, 379750), (62, 343000), (70, 303800), (80, 265825), (98, 217000), (100, 212660), (112, 189875), (124, 171500), (125, 170128), (140, 151900), (155, 137200), (175, 121520), (196, 108500), (200, 106330), (217, 98000), (245, 86800), (248, 85750), (250, 85064), (280, 75950), (310, 68600), (343, 62000), (350, 60760), (392, 54250), (400, 53165), (434, 49000), (490, 43400), (496, 42875), (500, 42532), (560, 37975), (620, 34300), (686, 31000), (700, 30380), (775, 27440), (784, 27125), (868, 24500), (875, 24304), (980, 21700), (1000, 21266), (1085, 19600), (1225, 17360), (1240, 17150), (1372, 15500), (1400, 15190), (1519, 14000), (1550, 13720), (1715, 12400), (1736, 12250), (1750, 12152), (1960, 10850), (2000, 10633), (2170, 9800), (2450, 8680), (2480, 8575), (2744, 7750), (2800, 7595), (3038, 7000), (3100, 6860), (3430, 6200), (3472, 6125), (3500, 6076), (3875, 5488), (3920, 5425), (4340, 4900)]