81141620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579583}}^1$

素因数の和:579599

約数の個数: 24

約数和(自身を含む): 194740224

約数和(自身を除く): 113598604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579583, 1159166, 2318332, 2897915, 4057081, 5795830, 8114162, 11591660, 16228324, 20285405, 40570810, 81141620]

約数ペア:

[(1, 81141620), (2, 40570810), (4, 20285405), (5, 16228324), (7, 11591660), (10, 8114162), (14, 5795830), (20, 4057081), (28, 2897915), (35, 2318332), (70, 1159166), (140, 579583)]