645339898

素因数分解:

$2^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{61543}}^1$

素因数の和:61666

約数の個数: 24

約数和(自身を含む): 1136594592

約数和(自身を除く): 491254694

約数列:

[1, 2, 7, 14, 49, 98, 107, 214, 749, 1498, 5243, 10486, 61543, 123086, 430801, 861602, 3015607, 6031214, 6585101, 13170202, 46095707, 92191414, 322669949, 645339898]

約数ペア:

[(1, 645339898), (2, 322669949), (7, 92191414), (14, 46095707), (49, 13170202), (98, 6585101), (107, 6031214), (214, 3015607), (749, 861602), (1498, 430801), (5243, 123086), (10486, 61543)]