394740215

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^2\times {\mathrm{409}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 493249680

約数和(自身を除く): 98509465

約数列:

[1, 5, 43, 67, 215, 335, 409, 2045, 2881, 4489, 14405, 17587, 22445, 27403, 87935, 137015, 193027, 965135, 1178329, 1836001, 5891645, 9180005, 78948043, 394740215]

約数ペア:

[(1, 394740215), (5, 78948043), (43, 9180005), (67, 5891645), (215, 1836001), (335, 1178329), (409, 965135), (2045, 193027), (2881, 137015), (4489, 87935), (14405, 27403), (17587, 22445)]