20175380

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4019}}^1$

素因数の和:4279

約数の個数: 24

約数和(自身を含む): 42547680

約数和(自身を除く): 22372300

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 4019, 5020, 8038, 16076, 20095, 40190, 80380, 1008769, 2017538, 4035076, 5043845, 10087690, 20175380]

約数ペア:

[(1, 20175380), (2, 10087690), (4, 5043845), (5, 4035076), (10, 2017538), (20, 1008769), (251, 80380), (502, 40190), (1004, 20095), (1255, 16076), (2510, 8038), (4019, 5020)]