20413960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72907}}^1$

素因数の和:72925

約数の個数: 32

約数和(自身を含む): 52493760

約数和(自身を除く): 32079800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72907, 145814, 291628, 364535, 510349, 583256, 729070, 1020698, 1458140, 2041396, 2551745, 2916280, 4082792, 5103490, 10206980, 20413960]

約数ペア:

[(1, 20413960), (2, 10206980), (4, 5103490), (5, 4082792), (7, 2916280), (8, 2551745), (10, 2041396), (14, 1458140), (20, 1020698), (28, 729070), (35, 583256), (40, 510349), (56, 364535), (70, 291628), (140, 145814), (280, 72907)]