197402870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{402863}}^1$

素因数の和:402884

約数の個数: 24

約数和(自身を含む): 413338464

約数和(自身を除く): 215935594

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 402863, 805726, 2014315, 2820041, 4028630, 5640082, 14100205, 19740287, 28200410, 39480574, 98701435, 197402870]

約数ペア:

[(1, 197402870), (2, 98701435), (5, 39480574), (7, 28200410), (10, 19740287), (14, 14100205), (35, 5640082), (49, 4028630), (70, 2820041), (98, 2014315), (245, 805726), (490, 402863)]