289988420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{92353}}^1$

素因数の和:92519

約数の個数: 24

約数和(自身を含む): 612861144

約数和(自身を除く): 322872724

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 92353, 184706, 369412, 461765, 923530, 1847060, 14499421, 28998842, 57997684, 72497105, 144994210, 289988420]

約数ペア:

[(1, 289988420), (2, 144994210), (4, 72497105), (5, 57997684), (10, 28998842), (20, 14499421), (157, 1847060), (314, 923530), (628, 461765), (785, 369412), (1570, 184706), (3140, 92353)]