28129280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 70171920

約数和(自身を除く): 42042640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 67, 80, 82, 128, 134, 160, 164, 205, 256, 268, 320, 328, 335, 410, 512, 536, 640, 656, 670, 820, 1024, 1072, 1280, 1312, 1340, 1640, 2048, 2144, 2560, 2624, 2680, 2747, 3280, 4288, 5120, 5248, 5360, 5494, 6560, 8576, 10240, 10496, 10720, 10988, 13120, 13735, 17152, 20992, 21440, 21976, 26240, 27470, 34304, 41984, 42880, 43952, 52480, 54940, 68608, 83968, 85760, 87904, 104960, 109880, 137216, 171520, 175808, 209920, 219760, 343040, 351616, 419840, 439520, 686080, 703232, 879040, 1406464, 1758080, 2812928, 3516160, 5625856, 7032320, 14064640, 28129280]

約数ペア:

[(1, 28129280), (2, 14064640), (4, 7032320), (5, 5625856), (8, 3516160), (10, 2812928), (16, 1758080), (20, 1406464), (32, 879040), (40, 703232), (41, 686080), (64, 439520), (67, 419840), (80, 351616), (82, 343040), (128, 219760), (134, 209920), (160, 175808), (164, 171520), (205, 137216), (256, 109880), (268, 104960), (320, 87904), (328, 85760), (335, 83968), (410, 68608), (512, 54940), (536, 52480), (640, 43952), (656, 42880), (670, 41984), (820, 34304), (1024, 27470), (1072, 26240), (1280, 21976), (1312, 21440), (1340, 20992), (1640, 17152), (2048, 13735), (2144, 13120), (2560, 10988), (2624, 10720), (2680, 10496), (2747, 10240), (3280, 8576), (4288, 6560), (5120, 5494), (5248, 5360)]