31245340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31883}}^1$

素因数の和:31906

約数の個数: 36

約数和(自身を含む): 76330296

約数和(自身を除く): 45084956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 31883, 63766, 127532, 159415, 223181, 318830, 446362, 637660, 892724, 1115905, 1562267, 2231810, 3124534, 4463620, 6249068, 7811335, 15622670, 31245340]

約数ペア:

[(1, 31245340), (2, 15622670), (4, 7811335), (5, 6249068), (7, 4463620), (10, 3124534), (14, 2231810), (20, 1562267), (28, 1115905), (35, 892724), (49, 637660), (70, 446362), (98, 318830), (140, 223181), (196, 159415), (245, 127532), (490, 63766), (980, 31883)]