80920539

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3319}}^1$

素因数の和:3381

約数の個数: 40

約数和(自身を含む): 141405440

約数和(自身を除く): 60484901

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 567, 903, 1161, 2709, 3319, 3483, 8127, 9957, 23233, 24381, 29871, 69699, 89613, 142717, 209097, 268839, 428151, 627291, 999019, 1284453, 1881873, 2997057, 3853359, 8991171, 11560077, 26973513, 80920539]

約数ペア:

[(1, 80920539), (3, 26973513), (7, 11560077), (9, 8991171), (21, 3853359), (27, 2997057), (43, 1881873), (63, 1284453), (81, 999019), (129, 627291), (189, 428151), (301, 268839), (387, 209097), (567, 142717), (903, 89613), (1161, 69699), (2709, 29871), (3319, 24381), (3483, 23233), (8127, 9957)]