3998720

素因数分解:

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

素因数の和:107

約数の個数: 88

約数和(自身を含む): 10611648

約数和(自身を除く): 6612928

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, 1024, 1136, 1280, 1408, 1420, 1562, 1760, 2272, 2560, 2816, 2840, 3124, 3520, 3905, 4544, 5120, 5632, 5680, 6248, 7040, 7810, 9088, 11264, 11360, 12496, 14080, 15620, 18176, 22720, 24992, 28160, 31240, 36352, 45440, 49984, 56320, 62480, 72704, 90880, 99968, 124960, 181760, 199936, 249920, 363520, 399872, 499840, 799744, 999680, 1999360, 3998720]

約数ペア:

[(1, 3998720), (2, 1999360), (4, 999680), (5, 799744), (8, 499840), (10, 399872), (11, 363520), (16, 249920), (20, 199936), (22, 181760), (32, 124960), (40, 99968), (44, 90880), (55, 72704), (64, 62480), (71, 56320), (80, 49984), (88, 45440), (110, 36352), (128, 31240), (142, 28160), (160, 24992), (176, 22720), (220, 18176), (256, 15620), (284, 14080), (320, 12496), (352, 11360), (355, 11264), (440, 9088), (512, 7810), (568, 7040), (640, 6248), (704, 5680), (710, 5632), (781, 5120), (880, 4544), (1024, 3905), (1136, 3520), (1280, 3124), (1408, 2840), (1420, 2816), (1562, 2560), (1760, 2272)]