28756574

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 28474786

約数列:

[1, 2, 7, 11, 14, 22, 29, 47, 58, 77, 94, 137, 154, 203, 274, 319, 329, 406, 517, 638, 658, 959, 1034, 1363, 1507, 1918, 2233, 2726, 3014, 3619, 3973, 4466, 6439, 7238, 7946, 9541, 10549, 12878, 14993, 19082, 21098, 27811, 29986, 43703, 45073, 55622, 70829, 87406, 90146, 104951, 141658, 186731, 209902, 305921, 373462, 495803, 611842, 991606, 1307117, 2054041, 2614234, 4108082, 14378287, 28756574]

約数ペア:

[(1, 28756574), (2, 14378287), (7, 4108082), (11, 2614234), (14, 2054041), (22, 1307117), (29, 991606), (47, 611842), (58, 495803), (77, 373462), (94, 305921), (137, 209902), (154, 186731), (203, 141658), (274, 104951), (319, 90146), (329, 87406), (406, 70829), (517, 55622), (638, 45073), (658, 43703), (959, 29986), (1034, 27811), (1363, 21098), (1507, 19082), (1918, 14993), (2233, 12878), (2726, 10549), (3014, 9541), (3619, 7946), (3973, 7238), (4466, 6439)]