21992960

素因数分解:

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

素因数の和:116

約数の個数: 120

約数和(自身を含む): 58777488

約数和(自身を除く): 36784528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 110, 121, 128, 142, 160, 176, 220, 242, 256, 284, 320, 352, 355, 440, 484, 512, 568, 605, 640, 704, 710, 781, 880, 968, 1136, 1210, 1280, 1408, 1420, 1562, 1760, 1936, 2272, 2420, 2560, 2816, 2840, 3124, 3520, 3872, 3905, 4544, 4840, 5632, 5680, 6248, 7040, 7744, 7810, 8591, 9088, 9680, 11360, 12496, 14080, 15488, 15620, 17182, 18176, 19360, 22720, 24992, 28160, 30976, 31240, 34364, 36352, 38720, 42955, 45440, 49984, 61952, 62480, 68728, 77440, 85910, 90880, 99968, 124960, 137456, 154880, 171820, 181760, 199936, 249920, 274912, 309760, 343640, 399872, 499840, 549824, 687280, 999680, 1099648, 1374560, 1999360, 2199296, 2749120, 4398592, 5498240, 10996480, 21992960]

約数ペア:

[(1, 21992960), (2, 10996480), (4, 5498240), (5, 4398592), (8, 2749120), (10, 2199296), (11, 1999360), (16, 1374560), (20, 1099648), (22, 999680), (32, 687280), (40, 549824), (44, 499840), (55, 399872), (64, 343640), (71, 309760), (80, 274912), (88, 249920), (110, 199936), (121, 181760), (128, 171820), (142, 154880), (160, 137456), (176, 124960), (220, 99968), (242, 90880), (256, 85910), (284, 77440), (320, 68728), (352, 62480), (355, 61952), (440, 49984), (484, 45440), (512, 42955), (568, 38720), (605, 36352), (640, 34364), (704, 31240), (710, 30976), (781, 28160), (880, 24992), (968, 22720), (1136, 19360), (1210, 18176), (1280, 17182), (1408, 15620), (1420, 15488), (1562, 14080), (1760, 12496), (1936, 11360), (2272, 9680), (2420, 9088), (2560, 8591), (2816, 7810), (2840, 7744), (3124, 7040), (3520, 6248), (3872, 5680), (3905, 5632), (4544, 4840)]