21011200

素因数分解:

$2^8\times 5^2\times 7^2\times {\mathrm{67}}^1$

素因数の和:107

約数の個数: 162

約数和(自身を含む): 61399716

約数和(自身を除く): 40388516

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 67, 70, 80, 98, 100, 112, 128, 134, 140, 160, 175, 196, 200, 224, 245, 256, 268, 280, 320, 335, 350, 392, 400, 448, 469, 490, 536, 560, 640, 670, 700, 784, 800, 896, 938, 980, 1072, 1120, 1225, 1280, 1340, 1400, 1568, 1600, 1675, 1792, 1876, 1960, 2144, 2240, 2345, 2450, 2680, 2800, 3136, 3200, 3283, 3350, 3752, 3920, 4288, 4480, 4690, 4900, 5360, 5600, 6272, 6400, 6566, 6700, 7504, 7840, 8576, 8960, 9380, 9800, 10720, 11200, 11725, 12544, 13132, 13400, 15008, 15680, 16415, 17152, 18760, 19600, 21440, 22400, 23450, 26264, 26800, 30016, 31360, 32830, 37520, 39200, 42880, 44800, 46900, 52528, 53600, 60032, 62720, 65660, 75040, 78400, 82075, 85760, 93800, 105056, 107200, 120064, 131320, 150080, 156800, 164150, 187600, 210112, 214400, 262640, 300160, 313600, 328300, 375200, 420224, 428800, 525280, 600320, 656600, 750400, 840448, 1050560, 1313200, 1500800, 2101120, 2626400, 3001600, 4202240, 5252800, 10505600, 21011200]

約数ペア:

[(1, 21011200), (2, 10505600), (4, 5252800), (5, 4202240), (7, 3001600), (8, 2626400), (10, 2101120), (14, 1500800), (16, 1313200), (20, 1050560), (25, 840448), (28, 750400), (32, 656600), (35, 600320), (40, 525280), (49, 428800), (50, 420224), (56, 375200), (64, 328300), (67, 313600), (70, 300160), (80, 262640), (98, 214400), (100, 210112), (112, 187600), (128, 164150), (134, 156800), (140, 150080), (160, 131320), (175, 120064), (196, 107200), (200, 105056), (224, 93800), (245, 85760), (256, 82075), (268, 78400), (280, 75040), (320, 65660), (335, 62720), (350, 60032), (392, 53600), (400, 52528), (448, 46900), (469, 44800), (490, 42880), (536, 39200), (560, 37520), (640, 32830), (670, 31360), (700, 30016), (784, 26800), (800, 26264), (896, 23450), (938, 22400), (980, 21440), (1072, 19600), (1120, 18760), (1225, 17152), (1280, 16415), (1340, 15680), (1400, 15008), (1568, 13400), (1600, 13132), (1675, 12544), (1792, 11725), (1876, 11200), (1960, 10720), (2144, 9800), (2240, 9380), (2345, 8960), (2450, 8576), (2680, 7840), (2800, 7504), (3136, 6700), (3200, 6566), (3283, 6400), (3350, 6272), (3752, 5600), (3920, 5360), (4288, 4900), (4480, 4690)]