81561718

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{5197}}^1$

素因数の和:5284

約数の個数: 32

約数和(自身を含む): 149702400

約数和(自身を除く): 68140682

約数列:

[1, 2, 7, 14, 19, 38, 59, 118, 133, 266, 413, 826, 1121, 2242, 5197, 7847, 10394, 15694, 36379, 72758, 98743, 197486, 306623, 613246, 691201, 1382402, 2146361, 4292722, 5825837, 11651674, 40780859, 81561718]

約数ペア:

[(1, 81561718), (2, 40780859), (7, 11651674), (14, 5825837), (19, 4292722), (38, 2146361), (59, 1382402), (118, 691201), (133, 613246), (266, 306623), (413, 197486), (826, 98743), (1121, 72758), (2242, 36379), (5197, 15694), (7847, 10394)]