311284340

素因数分解:

$2^2\times 5^1\times {\mathrm{15564217}}^1$

素因数の和:15564226

約数の個数: 12

約数和(自身を含む): 653697156

約数和(自身を除く): 342412816

約数列:

[1, 2, 4, 5, 10, 20, 15564217, 31128434, 62256868, 77821085, 155642170, 311284340]

約数ペア:

[(1, 311284340), (2, 155642170), (4, 77821085), (5, 62256868), (10, 31128434), (20, 15564217)]