20158474756

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2508521}}^1$

素因数の和:2508580

約数の個数: 36

約数和(自身を含む): 42037811676

約数和(自身を除く): 21879336920

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 4018, 8036, 2508521, 5017042, 10034084, 17559647, 35119294, 70238588, 102849361, 122917529, 205698722, 245835058, 411397444, 491670116, 719945527, 1439891054, 2879782108, 5039618689, 10079237378, 20158474756]

約数ペア:

[(1, 20158474756), (2, 10079237378), (4, 5039618689), (7, 2879782108), (14, 1439891054), (28, 719945527), (41, 491670116), (49, 411397444), (82, 245835058), (98, 205698722), (164, 122917529), (196, 102849361), (287, 70238588), (574, 35119294), (1148, 17559647), (2009, 10034084), (4018, 5017042), (8036, 2508521)]