388640290

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{162611}}^1$

素因数の和:162857

約数の個数: 16

約数和(自身を含む): 702483840

約数和(自身を除く): 313843550

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 162611, 325222, 813055, 1626110, 38864029, 77728058, 194320145, 388640290]

約数ペア:

[(1, 388640290), (2, 194320145), (5, 77728058), (10, 38864029), (239, 1626110), (478, 813055), (1195, 325222), (2390, 162611)]