20170178540

素因数分解:

$2^2\times 5^1\times {\mathrm{2557}}^1\times {\mathrm{394411}}^1$

素因数の和:396977

約数の個数: 24

約数和(自身を含む): 42374047632

約数和(自身を除く): 22203869092

約数列:

[1, 2, 4, 5, 10, 20, 2557, 5114, 10228, 12785, 25570, 51140, 394411, 788822, 1577644, 1972055, 3944110, 7888220, 1008508927, 2017017854, 4034035708, 5042544635, 10085089270, 20170178540]

約数ペア:

[(1, 20170178540), (2, 10085089270), (4, 5042544635), (5, 4034035708), (10, 2017017854), (20, 1008508927), (2557, 7888220), (5114, 3944110), (10228, 1972055), (12785, 1577644), (25570, 788822), (51140, 394411)]