81889280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{727}}^1$

素因数の和:765

約数の個数: 96

約数和(自身を含む): 214643520

約数和(自身を除く): 132754240

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, 256, 320, 352, 440, 512, 640, 704, 727, 880, 1024, 1280, 1408, 1454, 1760, 2048, 2560, 2816, 2908, 3520, 3635, 5120, 5632, 5816, 7040, 7270, 7997, 10240, 11264, 11632, 14080, 14540, 15994, 22528, 23264, 28160, 29080, 31988, 39985, 46528, 56320, 58160, 63976, 79970, 93056, 112640, 116320, 127952, 159940, 186112, 232640, 255904, 319880, 372224, 465280, 511808, 639760, 744448, 930560, 1023616, 1279520, 1488896, 1861120, 2047232, 2559040, 3722240, 4094464, 5118080, 7444480, 8188928, 10236160, 16377856, 20472320, 40944640, 81889280]

約数ペア:

[(1, 81889280), (2, 40944640), (4, 20472320), (5, 16377856), (8, 10236160), (10, 8188928), (11, 7444480), (16, 5118080), (20, 4094464), (22, 3722240), (32, 2559040), (40, 2047232), (44, 1861120), (55, 1488896), (64, 1279520), (80, 1023616), (88, 930560), (110, 744448), (128, 639760), (160, 511808), (176, 465280), (220, 372224), (256, 319880), (320, 255904), (352, 232640), (440, 186112), (512, 159940), (640, 127952), (704, 116320), (727, 112640), (880, 93056), (1024, 79970), (1280, 63976), (1408, 58160), (1454, 56320), (1760, 46528), (2048, 39985), (2560, 31988), (2816, 29080), (2908, 28160), (3520, 23264), (3635, 22528), (5120, 15994), (5632, 14540), (5816, 14080), (7040, 11632), (7270, 11264), (7997, 10240)]