1640743204

素因数分解:

$2^2\times {\mathrm{991}}^1\times {\mathrm{413911}}^1$

素因数の和:414906

約数の個数: 12

約数和(自身を含む): 2874204928

約数和(自身を除く): 1233461724

約数列:

[1, 2, 4, 991, 1982, 3964, 413911, 827822, 1655644, 410185801, 820371602, 1640743204]

約数ペア:

[(1, 1640743204), (2, 820371602), (4, 410185801), (991, 1655644), (1982, 827822), (3964, 413911)]