12784640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1$

素因数の和:263

約数の個数: 88

約数和(自身を含む): 33603552

約数和(自身を除く): 20818912

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, 227, 256, 320, 352, 440, 454, 512, 640, 704, 880, 908, 1024, 1135, 1280, 1408, 1760, 1816, 2270, 2497, 2560, 2816, 3520, 3632, 4540, 4994, 5120, 5632, 7040, 7264, 9080, 9988, 11264, 12485, 14080, 14528, 18160, 19976, 24970, 28160, 29056, 36320, 39952, 49940, 56320, 58112, 72640, 79904, 99880, 116224, 145280, 159808, 199760, 232448, 290560, 319616, 399520, 581120, 639232, 799040, 1162240, 1278464, 1598080, 2556928, 3196160, 6392320, 12784640]

約数ペア:

[(1, 12784640), (2, 6392320), (4, 3196160), (5, 2556928), (8, 1598080), (10, 1278464), (11, 1162240), (16, 799040), (20, 639232), (22, 581120), (32, 399520), (40, 319616), (44, 290560), (55, 232448), (64, 199760), (80, 159808), (88, 145280), (110, 116224), (128, 99880), (160, 79904), (176, 72640), (220, 58112), (227, 56320), (256, 49940), (320, 39952), (352, 36320), (440, 29056), (454, 28160), (512, 24970), (640, 19976), (704, 18160), (880, 14528), (908, 14080), (1024, 12485), (1135, 11264), (1280, 9988), (1408, 9080), (1760, 7264), (1816, 7040), (2270, 5632), (2497, 5120), (2560, 4994), (2816, 4540), (3520, 3632)]