81965396

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 153679680

約数和(自身を除く): 71714284

約数列:

[1, 2, 4, 41, 43, 59, 82, 86, 118, 164, 172, 197, 236, 394, 788, 1763, 2419, 2537, 3526, 4838, 5074, 7052, 8077, 8471, 9676, 10148, 11623, 16154, 16942, 23246, 32308, 33884, 46492, 104017, 208034, 347311, 416068, 476543, 499789, 694622, 953086, 999578, 1389244, 1906172, 1999156, 20491349, 40982698, 81965396]

約数ペア:

[(1, 81965396), (2, 40982698), (4, 20491349), (41, 1999156), (43, 1906172), (59, 1389244), (82, 999578), (86, 953086), (118, 694622), (164, 499789), (172, 476543), (197, 416068), (236, 347311), (394, 208034), (788, 104017), (1763, 46492), (2419, 33884), (2537, 32308), (3526, 23246), (4838, 16942), (5074, 16154), (7052, 11623), (8077, 10148), (8471, 9676)]