80902778

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{1697}}^1$

素因数の和:1918

約数の個数: 24

約数和(自身を含む): 134145396

約数和(自身を除く): 53242618

約数列:

[1, 2, 11, 22, 121, 197, 242, 394, 1697, 2167, 3394, 4334, 18667, 23837, 37334, 47674, 205337, 334309, 410674, 668618, 3677399, 7354798, 40451389, 80902778]

約数ペア:

[(1, 80902778), (2, 40451389), (11, 7354798), (22, 3677399), (121, 668618), (197, 410674), (242, 334309), (394, 205337), (1697, 47674), (2167, 37334), (3394, 23837), (4334, 18667)]