20403790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{739}}^1$

素因数の和:1008

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 19875890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 739, 1255, 1478, 2510, 2761, 3695, 5522, 7390, 8129, 13805, 16258, 27610, 40645, 81290, 185489, 370978, 927445, 1854890, 2040379, 4080758, 10201895, 20403790]

約数ペア:

[(1, 20403790), (2, 10201895), (5, 4080758), (10, 2040379), (11, 1854890), (22, 927445), (55, 370978), (110, 185489), (251, 81290), (502, 40645), (739, 27610), (1255, 16258), (1478, 13805), (2510, 8129), (2761, 7390), (3695, 5522)]