28167040

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4001}}^1$

素因数の和:4031

約数の個数: 64

約数和(自身を含む): 73476720

約数和(自身を除く): 45309680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 4001, 7040, 8002, 16004, 20005, 32008, 40010, 44011, 64016, 80020, 88022, 128032, 160040, 176044, 220055, 256064, 320080, 352088, 440110, 512128, 640160, 704176, 880220, 1280320, 1408352, 1760440, 2560640, 2816704, 3520880, 5633408, 7041760, 14083520, 28167040]

約数ペア:

[(1, 28167040), (2, 14083520), (4, 7041760), (5, 5633408), (8, 3520880), (10, 2816704), (11, 2560640), (16, 1760440), (20, 1408352), (22, 1280320), (32, 880220), (40, 704176), (44, 640160), (55, 512128), (64, 440110), (80, 352088), (88, 320080), (110, 256064), (128, 220055), (160, 176044), (176, 160040), (220, 128032), (320, 88022), (352, 80020), (440, 64016), (640, 44011), (704, 40010), (880, 32008), (1408, 20005), (1760, 16004), (3520, 8002), (4001, 7040)]