80736880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144173}}^1$

素因数の和:144193

約数の個数: 40

約数和(自身を含む): 214530912

約数和(自身を除く): 133794032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144173, 288346, 576692, 720865, 1009211, 1153384, 1441730, 2018422, 2306768, 2883460, 4036844, 5046055, 5766920, 8073688, 10092110, 11533840, 16147376, 20184220, 40368440, 80736880]

約数ペア:

[(1, 80736880), (2, 40368440), (4, 20184220), (5, 16147376), (7, 11533840), (8, 10092110), (10, 8073688), (14, 5766920), (16, 5046055), (20, 4036844), (28, 2883460), (35, 2306768), (40, 2018422), (56, 1441730), (70, 1153384), (80, 1009211), (112, 720865), (140, 576692), (280, 288346), (560, 144173)]