18886070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38543}}^1$

素因数の和:38564

約数の個数: 24

約数和(自身を含む): 39546144

約数和(自身を除く): 20660074

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38543, 77086, 192715, 269801, 385430, 539602, 1349005, 1888607, 2698010, 3777214, 9443035, 18886070]

約数ペア:

[(1, 18886070), (2, 9443035), (5, 3777214), (7, 2698010), (10, 1888607), (14, 1349005), (35, 539602), (49, 385430), (70, 269801), (98, 192715), (245, 77086), (490, 38543)]