1999360

素因数分解:

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

素因数の和:105

約数の個数: 80

約数和(自身を含む): 5303232

約数和(自身を除く): 3303872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 110, 128, 142, 160, 176, 220, 256, 284, 320, 352, 355, 440, 512, 568, 640, 704, 710, 781, 880, 1136, 1280, 1408, 1420, 1562, 1760, 2272, 2560, 2816, 2840, 3124, 3520, 3905, 4544, 5632, 5680, 6248, 7040, 7810, 9088, 11360, 12496, 14080, 15620, 18176, 22720, 24992, 28160, 31240, 36352, 45440, 49984, 62480, 90880, 99968, 124960, 181760, 199936, 249920, 399872, 499840, 999680, 1999360]

約数ペア:

[(1, 1999360), (2, 999680), (4, 499840), (5, 399872), (8, 249920), (10, 199936), (11, 181760), (16, 124960), (20, 99968), (22, 90880), (32, 62480), (40, 49984), (44, 45440), (55, 36352), (64, 31240), (71, 28160), (80, 24992), (88, 22720), (110, 18176), (128, 15620), (142, 14080), (160, 12496), (176, 11360), (220, 9088), (256, 7810), (284, 7040), (320, 6248), (352, 5680), (355, 5632), (440, 4544), (512, 3905), (568, 3520), (640, 3124), (704, 2840), (710, 2816), (781, 2560), (880, 2272), (1136, 1760), (1280, 1562), (1408, 1420)]