81568216

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{536633}}^1$

素因数の和:536658

約数の個数: 16

約数和(自身を含む): 160990200

約数和(自身を除く): 79421984

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 536633, 1073266, 2146532, 4293064, 10196027, 20392054, 40784108, 81568216]

約数ペア:

[(1, 81568216), (2, 40784108), (4, 20392054), (8, 10196027), (19, 4293064), (38, 2146532), (76, 1073266), (152, 536633)]