9931810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{20269}}^1$

素因数の和:20290

約数の個数: 24

約数和(自身を含む): 20797020

約数和(自身を除く): 10865210

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 20269, 40538, 101345, 141883, 202690, 283766, 709415, 993181, 1418830, 1986362, 4965905, 9931810]

約数ペア:

[(1, 9931810), (2, 4965905), (5, 1986362), (7, 1418830), (10, 993181), (14, 709415), (35, 283766), (49, 202690), (70, 141883), (98, 101345), (245, 40538), (490, 20269)]