81067120

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3853}}^1$

素因数の和:4129

約数の個数: 40

約数和(自身を含む): 189246816

約数和(自身を除く): 108179696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 3853, 4208, 5260, 7706, 10520, 15412, 19265, 21040, 30824, 38530, 61648, 77060, 154120, 308240, 1013339, 2026678, 4053356, 5066695, 8106712, 10133390, 16213424, 20266780, 40533560, 81067120]

約数ペア:

[(1, 81067120), (2, 40533560), (4, 20266780), (5, 16213424), (8, 10133390), (10, 8106712), (16, 5066695), (20, 4053356), (40, 2026678), (80, 1013339), (263, 308240), (526, 154120), (1052, 77060), (1315, 61648), (2104, 38530), (2630, 30824), (3853, 21040), (4208, 19265), (5260, 15412), (7706, 10520)]