306237505

素因数分解:

$5^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{2969}}^1$

素因数の和:3409

約数の個数: 24

約数和(自身を含む): 428642280

約数和(自身を除く): 122404775

約数列:

[1, 5, 7, 35, 49, 245, 421, 2105, 2947, 2969, 14735, 14845, 20629, 20783, 103145, 103915, 145481, 727405, 1249949, 6249745, 8749643, 43748215, 61247501, 306237505]

約数ペア:

[(1, 306237505), (5, 61247501), (7, 43748215), (35, 8749643), (49, 6249745), (245, 1249949), (421, 727405), (2105, 145481), (2947, 103915), (2969, 103145), (14735, 20783), (14845, 20629)]