19885600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 57371328

約数和(自身を除く): 37485728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 53, 56, 67, 70, 80, 100, 106, 112, 134, 140, 160, 175, 200, 212, 224, 265, 268, 280, 335, 350, 371, 400, 424, 469, 530, 536, 560, 670, 700, 742, 800, 848, 938, 1060, 1072, 1120, 1325, 1340, 1400, 1484, 1675, 1696, 1855, 1876, 2120, 2144, 2345, 2650, 2680, 2800, 2968, 3350, 3551, 3710, 3752, 4240, 4690, 5300, 5360, 5600, 5936, 6700, 7102, 7420, 7504, 8480, 9275, 9380, 10600, 10720, 11725, 11872, 13400, 14204, 14840, 15008, 17755, 18550, 18760, 21200, 23450, 24857, 26800, 28408, 29680, 35510, 37100, 37520, 42400, 46900, 49714, 53600, 56816, 59360, 71020, 74200, 75040, 88775, 93800, 99428, 113632, 124285, 142040, 148400, 177550, 187600, 198856, 248570, 284080, 296800, 355100, 375200, 397712, 497140, 568160, 621425, 710200, 795424, 994280, 1242850, 1420400, 1988560, 2485700, 2840800, 3977120, 4971400, 9942800, 19885600]

約数ペア:

[(1, 19885600), (2, 9942800), (4, 4971400), (5, 3977120), (7, 2840800), (8, 2485700), (10, 1988560), (14, 1420400), (16, 1242850), (20, 994280), (25, 795424), (28, 710200), (32, 621425), (35, 568160), (40, 497140), (50, 397712), (53, 375200), (56, 355100), (67, 296800), (70, 284080), (80, 248570), (100, 198856), (106, 187600), (112, 177550), (134, 148400), (140, 142040), (160, 124285), (175, 113632), (200, 99428), (212, 93800), (224, 88775), (265, 75040), (268, 74200), (280, 71020), (335, 59360), (350, 56816), (371, 53600), (400, 49714), (424, 46900), (469, 42400), (530, 37520), (536, 37100), (560, 35510), (670, 29680), (700, 28408), (742, 26800), (800, 24857), (848, 23450), (938, 21200), (1060, 18760), (1072, 18550), (1120, 17755), (1325, 15008), (1340, 14840), (1400, 14204), (1484, 13400), (1675, 11872), (1696, 11725), (1855, 10720), (1876, 10600), (2120, 9380), (2144, 9275), (2345, 8480), (2650, 7504), (2680, 7420), (2800, 7102), (2968, 6700), (3350, 5936), (3551, 5600), (3710, 5360), (3752, 5300), (4240, 4690)]