279790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{571}}^1$

素因数の和:592

約数の個数: 24

約数和(自身を含む): 586872

約数和(自身を除く): 307082

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 571, 1142, 2855, 3997, 5710, 7994, 19985, 27979, 39970, 55958, 139895, 279790]

約数ペア:

[(1, 279790), (2, 139895), (5, 55958), (7, 39970), (10, 27979), (14, 19985), (35, 7994), (49, 5710), (70, 3997), (98, 2855), (245, 1142), (490, 571)]