81534416

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{9781}}^1$

素因数の和:10310

約数の個数: 20

約数和(自身を含む): 158292324

約数和(自身を除く): 76757908

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 4168, 8336, 9781, 19562, 39124, 78248, 156496, 5095901, 10191802, 20383604, 40767208, 81534416]

約数ペア:

[(1, 81534416), (2, 40767208), (4, 20383604), (8, 10191802), (16, 5095901), (521, 156496), (1042, 78248), (2084, 39124), (4168, 19562), (8336, 9781)]