80971556

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{493729}}^1$

素因数の和:493774

約数の個数: 12

約数和(自身を含む): 145156620

約数和(自身を除く): 64185064

約数列:

[1, 2, 4, 41, 82, 164, 493729, 987458, 1974916, 20242889, 40485778, 80971556]

約数ペア:

[(1, 80971556), (2, 40485778), (4, 20242889), (41, 1974916), (82, 987458), (164, 493729)]