278860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 596736

約数和(自身を除く): 317876

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 191, 292, 365, 382, 730, 764, 955, 1460, 1910, 3820, 13943, 27886, 55772, 69715, 139430, 278860]

約数ペア:

[(1, 278860), (2, 139430), (4, 69715), (5, 55772), (10, 27886), (20, 13943), (73, 3820), (146, 1910), (191, 1460), (292, 955), (365, 764), (382, 730)]