81190480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144983}}^1$

素因数の和:145003

約数の個数: 40

約数和(自身を含む): 215736192

約数和(自身を除く): 134545712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144983, 289966, 579932, 724915, 1014881, 1159864, 1449830, 2029762, 2319728, 2899660, 4059524, 5074405, 5799320, 8119048, 10148810, 11598640, 16238096, 20297620, 40595240, 81190480]

約数ペア:

[(1, 81190480), (2, 40595240), (4, 20297620), (5, 16238096), (7, 11598640), (8, 10148810), (10, 8119048), (14, 5799320), (16, 5074405), (20, 4059524), (28, 2899660), (35, 2319728), (40, 2029762), (56, 1449830), (70, 1159864), (80, 1014881), (112, 724915), (140, 579932), (280, 289966), (560, 144983)]