638402284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{887}}^1\times {\mathrm{13841}}^1$

素因数の和:14745

約数の個数: 24

約数和(自身を含む): 1204586208

約数和(自身を除く): 566183924

約数列:

[1, 2, 4, 13, 26, 52, 887, 1774, 3548, 11531, 13841, 23062, 27682, 46124, 55364, 179933, 359866, 719732, 12276967, 24553934, 49107868, 159600571, 319201142, 638402284]

約数ペア:

[(1, 638402284), (2, 319201142), (4, 159600571), (13, 49107868), (26, 24553934), (52, 12276967), (887, 719732), (1774, 359866), (3548, 179933), (11531, 55364), (13841, 46124), (23062, 27682)]