647948

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 1317792

約数和(自身を除く): 669844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 317, 511, 634, 1022, 1268, 2044, 2219, 4438, 8876, 23141, 46282, 92564, 161987, 323974, 647948]

約数ペア:

[(1, 647948), (2, 323974), (4, 161987), (7, 92564), (14, 46282), (28, 23141), (73, 8876), (146, 4438), (292, 2219), (317, 2044), (511, 1268), (634, 1022)]