20378385

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:835

約数の個数: 40

約数和(自身を含む): 37124736

約数和(自身を除く): 16746351

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 751, 1005, 1809, 2253, 3015, 3755, 5427, 6759, 9045, 11265, 20277, 27135, 33795, 50317, 60831, 101385, 150951, 251585, 304155, 452853, 754755, 1358559, 2264265, 4075677, 6792795, 20378385]

約数ペア:

[(1, 20378385), (3, 6792795), (5, 4075677), (9, 2264265), (15, 1358559), (27, 754755), (45, 452853), (67, 304155), (81, 251585), (135, 150951), (201, 101385), (335, 60831), (405, 50317), (603, 33795), (751, 27135), (1005, 20277), (1809, 11265), (2253, 9045), (3015, 6759), (3755, 5427)]