689484172

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{21701}}^1$

素因数の和:21778

約数の個数: 36

約数和(自身を含む): 1334412576

約数和(自身を除く): 644928404

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 169, 188, 338, 611, 676, 1222, 2444, 7943, 15886, 21701, 31772, 43402, 86804, 282113, 564226, 1019947, 1128452, 2039894, 3667469, 4079788, 7334938, 13259311, 14669876, 26518622, 53037244, 172371043, 344742086, 689484172]

約数ペア:

[(1, 689484172), (2, 344742086), (4, 172371043), (13, 53037244), (26, 26518622), (47, 14669876), (52, 13259311), (94, 7334938), (169, 4079788), (188, 3667469), (338, 2039894), (611, 1128452), (676, 1019947), (1222, 564226), (2444, 282113), (7943, 86804), (15886, 43402), (21701, 31772)]