80340760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28289}}^1$

素因数の和:28371

約数の個数: 32

約数和(自身を含む): 183319200

約数和(自身を除く): 102978440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 28289, 56578, 113156, 141445, 226312, 282890, 565780, 1131560, 2008519, 4017038, 8034076, 10042595, 16068152, 20085190, 40170380, 80340760]

約数ペア:

[(1, 80340760), (2, 40170380), (4, 20085190), (5, 16068152), (8, 10042595), (10, 8034076), (20, 4017038), (40, 2008519), (71, 1131560), (142, 565780), (284, 282890), (355, 226312), (568, 141445), (710, 113156), (1420, 56578), (2840, 28289)]