71141680

素因数分解:

$2^4\times 5^1\times {\mathrm{889271}}^1$

素因数の和:889284

約数の個数: 20

約数和(自身を含む): 165404592

約数和(自身を除く): 94262912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 889271, 1778542, 3557084, 4446355, 7114168, 8892710, 14228336, 17785420, 35570840, 71141680]

約数ペア:

[(1, 71141680), (2, 35570840), (4, 17785420), (5, 14228336), (8, 8892710), (10, 7114168), (16, 4446355), (20, 3557084), (40, 1778542), (80, 889271)]