81304580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{580747}}^1$

素因数の和:580763

約数の個数: 24

約数和(自身を含む): 195131328

約数和(自身を除く): 113826748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 580747, 1161494, 2322988, 2903735, 4065229, 5807470, 8130458, 11614940, 16260916, 20326145, 40652290, 81304580]

約数ペア:

[(1, 81304580), (2, 40652290), (4, 20326145), (5, 16260916), (7, 11614940), (10, 8130458), (14, 5807470), (20, 4065229), (28, 2903735), (35, 2322988), (70, 1161494), (140, 580747)]