85812920

素因数分解:

$2^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{2557}}^1$

素因数の和:3407

約数の個数: 32

約数和(自身を含む): 193384800

約数和(自身を除く): 107571880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 839, 1678, 2557, 3356, 4195, 5114, 6712, 8390, 10228, 12785, 16780, 20456, 25570, 33560, 51140, 102280, 2145323, 4290646, 8581292, 10726615, 17162584, 21453230, 42906460, 85812920]

約数ペア:

[(1, 85812920), (2, 42906460), (4, 21453230), (5, 17162584), (8, 10726615), (10, 8581292), (20, 4290646), (40, 2145323), (839, 102280), (1678, 51140), (2557, 33560), (3356, 25570), (4195, 20456), (5114, 16780), (6712, 12785), (8390, 10228)]