638049290

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{428221}}^1$

素因数の和:428377

約数の個数: 16

約数和(自身を含む): 1156199400

約数和(自身を除く): 518150110

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 428221, 856442, 2141105, 4282210, 63804929, 127609858, 319024645, 638049290]

約数ペア:

[(1, 638049290), (2, 319024645), (5, 127609858), (10, 63804929), (149, 4282210), (298, 2141105), (745, 856442), (1490, 428221)]