19993600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 132

約数和(自身を含む): 54826848

約数和(自身を除く): 34833248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 71, 80, 88, 100, 110, 128, 142, 160, 176, 200, 220, 256, 275, 284, 320, 352, 355, 400, 440, 512, 550, 568, 640, 704, 710, 781, 800, 880, 1024, 1100, 1136, 1280, 1408, 1420, 1562, 1600, 1760, 1775, 2200, 2272, 2560, 2816, 2840, 3124, 3200, 3520, 3550, 3905, 4400, 4544, 5120, 5632, 5680, 6248, 6400, 7040, 7100, 7810, 8800, 9088, 11264, 11360, 12496, 12800, 14080, 14200, 15620, 17600, 18176, 19525, 22720, 24992, 25600, 28160, 28400, 31240, 35200, 36352, 39050, 45440, 49984, 56320, 56800, 62480, 70400, 72704, 78100, 90880, 99968, 113600, 124960, 140800, 156200, 181760, 199936, 227200, 249920, 281600, 312400, 363520, 399872, 454400, 499840, 624800, 799744, 908800, 999680, 1249600, 1817600, 1999360, 2499200, 3998720, 4998400, 9996800, 19993600]

約数ペア:

[(1, 19993600), (2, 9996800), (4, 4998400), (5, 3998720), (8, 2499200), (10, 1999360), (11, 1817600), (16, 1249600), (20, 999680), (22, 908800), (25, 799744), (32, 624800), (40, 499840), (44, 454400), (50, 399872), (55, 363520), (64, 312400), (71, 281600), (80, 249920), (88, 227200), (100, 199936), (110, 181760), (128, 156200), (142, 140800), (160, 124960), (176, 113600), (200, 99968), (220, 90880), (256, 78100), (275, 72704), (284, 70400), (320, 62480), (352, 56800), (355, 56320), (400, 49984), (440, 45440), (512, 39050), (550, 36352), (568, 35200), (640, 31240), (704, 28400), (710, 28160), (781, 25600), (800, 24992), (880, 22720), (1024, 19525), (1100, 18176), (1136, 17600), (1280, 15620), (1408, 14200), (1420, 14080), (1562, 12800), (1600, 12496), (1760, 11360), (1775, 11264), (2200, 9088), (2272, 8800), (2560, 7810), (2816, 7100), (2840, 7040), (3124, 6400), (3200, 6248), (3520, 5680), (3550, 5632), (3905, 5120), (4400, 4544)]