9996800

素因数分解:

$2^9\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 120

約数和(自身を含む): 27400032

約数和(自身を除く): 17403232

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, 1100, 1136, 1280, 1408, 1420, 1562, 1600, 1760, 1775, 2200, 2272, 2560, 2816, 2840, 3124, 3200, 3520, 3550, 3905, 4400, 4544, 5632, 5680, 6248, 6400, 7040, 7100, 7810, 8800, 9088, 11360, 12496, 12800, 14080, 14200, 15620, 17600, 18176, 19525, 22720, 24992, 28160, 28400, 31240, 35200, 36352, 39050, 45440, 49984, 56800, 62480, 70400, 78100, 90880, 99968, 113600, 124960, 140800, 156200, 181760, 199936, 227200, 249920, 312400, 399872, 454400, 499840, 624800, 908800, 999680, 1249600, 1999360, 2499200, 4998400, 9996800]

約数ペア:

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