20413106.000000000

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{46589}}^1$

素因数の和:46648

約数の個数: 36

約数和(自身を含む): 780755220

約数和(自身を除く): 406366016

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 4018, 8036, 46589, 93178, 186356, 326123, 652246, 1304492, 1910149, 2282861, 3820298, 4565722, 7640596, 9131444, 13371043, 26742086, 53484172, 93597301, 187194602, 374389204]

約数ペア:

[(1, 374389204), (2, 187194602), (4, 93597301), (7, 53484172), (14, 26742086), (28, 13371043), (41, 9131444), (49, 7640596), (82, 4565722), (98, 3820298), (164, 2282861), (196, 1910149), (287, 1304492), (574, 652246), (1148, 326123), (2009, 186356), (4018, 93178), (8036, 46589)]