20896148

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 46922400

約数和(自身を除く): 26026252

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 59, 91, 98, 118, 139, 182, 196, 236, 278, 364, 413, 556, 637, 767, 826, 973, 1274, 1534, 1652, 1807, 1946, 2548, 2891, 3068, 3614, 3892, 5369, 5782, 6811, 7228, 8201, 10738, 11564, 12649, 13622, 16402, 21476, 25298, 27244, 32804, 37583, 50596, 57407, 75166, 88543, 106613, 114814, 150332, 177086, 213226, 229628, 354172, 401849, 426452, 746291, 803698, 1492582, 1607396, 2985164, 5224037, 10448074, 20896148]

約数ペア:

[(1, 20896148), (2, 10448074), (4, 5224037), (7, 2985164), (13, 1607396), (14, 1492582), (26, 803698), (28, 746291), (49, 426452), (52, 401849), (59, 354172), (91, 229628), (98, 213226), (118, 177086), (139, 150332), (182, 114814), (196, 106613), (236, 88543), (278, 75166), (364, 57407), (413, 50596), (556, 37583), (637, 32804), (767, 27244), (826, 25298), (973, 21476), (1274, 16402), (1534, 13622), (1652, 12649), (1807, 11564), (1946, 10738), (2548, 8201), (2891, 7228), (3068, 6811), (3614, 5782), (3892, 5369)]