80060840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 186753600

約数和(自身を除く): 106692760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 215, 344, 356, 430, 445, 523, 712, 860, 890, 1046, 1720, 1780, 2092, 2615, 3560, 3827, 4184, 5230, 7654, 10460, 15308, 19135, 20920, 22489, 30616, 38270, 44978, 46547, 76540, 89956, 93094, 112445, 153080, 179912, 186188, 224890, 232735, 372376, 449780, 465470, 899560, 930940, 1861880, 2001521, 4003042, 8006084, 10007605, 16012168, 20015210, 40030420, 80060840]

約数ペア:

[(1, 80060840), (2, 40030420), (4, 20015210), (5, 16012168), (8, 10007605), (10, 8006084), (20, 4003042), (40, 2001521), (43, 1861880), (86, 930940), (89, 899560), (172, 465470), (178, 449780), (215, 372376), (344, 232735), (356, 224890), (430, 186188), (445, 179912), (523, 153080), (712, 112445), (860, 93094), (890, 89956), (1046, 76540), (1720, 46547), (1780, 44978), (2092, 38270), (2615, 30616), (3560, 22489), (3827, 20920), (4184, 19135), (5230, 15308), (7654, 10460)]