39987200

素因数分解:

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

素因数の和:114

約数の個数: 144

約数和(自身を含む): 109680480

約数和(自身を除く): 69693280

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, 2048, 2200, 2272, 2560, 2816, 2840, 3124, 3200, 3520, 3550, 3905, 4400, 4544, 5120, 5632, 5680, 6248, 6400, 7040, 7100, 7810, 8800, 9088, 10240, 11264, 11360, 12496, 12800, 14080, 14200, 15620, 17600, 18176, 19525, 22528, 22720, 24992, 25600, 28160, 28400, 31240, 35200, 36352, 39050, 45440, 49984, 51200, 56320, 56800, 62480, 70400, 72704, 78100, 90880, 99968, 112640, 113600, 124960, 140800, 145408, 156200, 181760, 199936, 227200, 249920, 281600, 312400, 363520, 399872, 454400, 499840, 563200, 624800, 727040, 799744, 908800, 999680, 1249600, 1599488, 1817600, 1999360, 2499200, 3635200, 3998720, 4998400, 7997440, 9996800, 19993600, 39987200]

約数ペア:

[(1, 39987200), (2, 19993600), (4, 9996800), (5, 7997440), (8, 4998400), (10, 3998720), (11, 3635200), (16, 2499200), (20, 1999360), (22, 1817600), (25, 1599488), (32, 1249600), (40, 999680), (44, 908800), (50, 799744), (55, 727040), (64, 624800), (71, 563200), (80, 499840), (88, 454400), (100, 399872), (110, 363520), (128, 312400), (142, 281600), (160, 249920), (176, 227200), (200, 199936), (220, 181760), (256, 156200), (275, 145408), (284, 140800), (320, 124960), (352, 113600), (355, 112640), (400, 99968), (440, 90880), (512, 78100), (550, 72704), (568, 70400), (640, 62480), (704, 56800), (710, 56320), (781, 51200), (800, 49984), (880, 45440), (1024, 39050), (1100, 36352), (1136, 35200), (1280, 31240), (1408, 28400), (1420, 28160), (1562, 25600), (1600, 24992), (1760, 22720), (1775, 22528), (2048, 19525), (2200, 18176), (2272, 17600), (2560, 15620), (2816, 14200), (2840, 14080), (3124, 12800), (3200, 12496), (3520, 11360), (3550, 11264), (3905, 10240), (4400, 9088), (4544, 8800), (5120, 7810), (5632, 7100), (5680, 7040), (6248, 6400)]