77781808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{373951}}^1$

素因数の和:373972

約数の個数: 20

約数和(自身を含む): 162295168

約数和(自身を除く): 84513360

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 373951, 747902, 1495804, 2991608, 4861363, 5983216, 9722726, 19445452, 38890904, 77781808]

約数ペア:

[(1, 77781808), (2, 38890904), (4, 19445452), (8, 9722726), (13, 5983216), (16, 4861363), (26, 2991608), (52, 1495804), (104, 747902), (208, 373951)]