81142180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579587}}^1$

素因数の和:579603

約数の個数: 24

約数和(自身を含む): 194741568

約数和(自身を除く): 113599388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579587, 1159174, 2318348, 2897935, 4057109, 5795870, 8114218, 11591740, 16228436, 20285545, 40571090, 81142180]

約数ペア:

[(1, 81142180), (2, 40571090), (4, 20285545), (5, 16228436), (7, 11591740), (10, 8114218), (14, 5795870), (20, 4057109), (28, 2897935), (35, 2318348), (70, 1159174), (140, 579587)]