20181489340

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4020217}}^1$

素因数の和:4020477

約数の個数: 24

約数和(自身を含む): 42549987312

約数和(自身を除く): 22368497972

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 4020217, 8040434, 16080868, 20101085, 40202170, 80404340, 1009074467, 2018148934, 4036297868, 5045372335, 10090744670, 20181489340]

約数ペア:

[(1, 20181489340), (2, 10090744670), (4, 5045372335), (5, 4036297868), (10, 2018148934), (20, 1009074467), (251, 80404340), (502, 40202170), (1004, 20101085), (1255, 16080868), (2510, 8040434), (5020, 4020217)]