21854000

素因数分解:

$2^4\times 5^3\times 7^2\times {\mathrm{223}}^1$

素因数の和:260

約数の個数: 120

約数和(自身を含む): 61746048

約数和(自身を除く): 39892048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 140, 175, 196, 200, 223, 245, 250, 280, 350, 392, 400, 446, 490, 500, 560, 700, 784, 875, 892, 980, 1000, 1115, 1225, 1400, 1561, 1750, 1784, 1960, 2000, 2230, 2450, 2800, 3122, 3500, 3568, 3920, 4460, 4900, 5575, 6125, 6244, 7000, 7805, 8920, 9800, 10927, 11150, 12250, 12488, 14000, 15610, 17840, 19600, 21854, 22300, 24500, 24976, 27875, 31220, 39025, 43708, 44600, 49000, 54635, 55750, 62440, 78050, 87416, 89200, 98000, 109270, 111500, 124880, 156100, 174832, 195125, 218540, 223000, 273175, 312200, 390250, 437080, 446000, 546350, 624400, 780500, 874160, 1092700, 1365875, 1561000, 2185400, 2731750, 3122000, 4370800, 5463500, 10927000, 21854000]

約数ペア:

[(1, 21854000), (2, 10927000), (4, 5463500), (5, 4370800), (7, 3122000), (8, 2731750), (10, 2185400), (14, 1561000), (16, 1365875), (20, 1092700), (25, 874160), (28, 780500), (35, 624400), (40, 546350), (49, 446000), (50, 437080), (56, 390250), (70, 312200), (80, 273175), (98, 223000), (100, 218540), (112, 195125), (125, 174832), (140, 156100), (175, 124880), (196, 111500), (200, 109270), (223, 98000), (245, 89200), (250, 87416), (280, 78050), (350, 62440), (392, 55750), (400, 54635), (446, 49000), (490, 44600), (500, 43708), (560, 39025), (700, 31220), (784, 27875), (875, 24976), (892, 24500), (980, 22300), (1000, 21854), (1115, 19600), (1225, 17840), (1400, 15610), (1561, 14000), (1750, 12488), (1784, 12250), (1960, 11150), (2000, 10927), (2230, 9800), (2450, 8920), (2800, 7805), (3122, 7000), (3500, 6244), (3568, 6125), (3920, 5575), (4460, 4900)]