81534560

素因数分解:

$2^5\times 5^1\times {\mathrm{509591}}^1$

素因数の和:509606

約数の個数: 24

約数和(自身を含む): 192625776

約数和(自身を除く): 111091216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509591, 1019182, 2038364, 2547955, 4076728, 5095910, 8153456, 10191820, 16306912, 20383640, 40767280, 81534560]

約数ペア:

[(1, 81534560), (2, 40767280), (4, 20383640), (5, 16306912), (8, 10191820), (10, 8153456), (16, 5095910), (20, 4076728), (32, 2547955), (40, 2038364), (80, 1019182), (160, 509591)]