81212072

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{142979}}^1$

素因数の和:143056

約数の個数: 16

約数和(自身を含む): 154418400

約数和(自身を除く): 73206328

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 142979, 285958, 571916, 1143832, 10151509, 20303018, 40606036, 81212072]

約数ペア:

[(1, 81212072), (2, 40606036), (4, 20303018), (8, 10151509), (71, 1143832), (142, 571916), (284, 285958), (568, 142979)]