20787608

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 40656000

約数和(自身を除く): 19868392

約数列:

[1, 2, 4, 8, 31, 62, 109, 124, 218, 248, 436, 769, 872, 1538, 3076, 3379, 6152, 6758, 13516, 23839, 27032, 47678, 83821, 95356, 167642, 190712, 335284, 670568, 2598451, 5196902, 10393804, 20787608]

約数ペア:

[(1, 20787608), (2, 10393804), (4, 5196902), (8, 2598451), (31, 670568), (62, 335284), (109, 190712), (124, 167642), (218, 95356), (248, 83821), (436, 47678), (769, 27032), (872, 23839), (1538, 13516), (3076, 6758), (3379, 6152)]