81579520

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2897}}^1$

素因数の和:2931

約数の個数: 80

約数和(自身を含む): 213455088

約数和(自身を除く): 131875568

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, 880, 1280, 1408, 1760, 2560, 2816, 2897, 3520, 5632, 5794, 7040, 11588, 14080, 14485, 23176, 28160, 28970, 31867, 46352, 57940, 63734, 92704, 115880, 127468, 159335, 185408, 231760, 254936, 318670, 370816, 463520, 509872, 637340, 741632, 927040, 1019744, 1274680, 1483264, 1854080, 2039488, 2549360, 3708160, 4078976, 5098720, 7416320, 8157952, 10197440, 16315904, 20394880, 40789760, 81579520]

約数ペア:

[(1, 81579520), (2, 40789760), (4, 20394880), (5, 16315904), (8, 10197440), (10, 8157952), (11, 7416320), (16, 5098720), (20, 4078976), (22, 3708160), (32, 2549360), (40, 2039488), (44, 1854080), (55, 1483264), (64, 1274680), (80, 1019744), (88, 927040), (110, 741632), (128, 637340), (160, 509872), (176, 463520), (220, 370816), (256, 318670), (320, 254936), (352, 231760), (440, 185408), (512, 159335), (640, 127468), (704, 115880), (880, 92704), (1280, 63734), (1408, 57940), (1760, 46352), (2560, 31867), (2816, 28970), (2897, 28160), (3520, 23176), (5632, 14485), (5794, 14080), (7040, 11588)]