28087774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 53887680

約数和(自身を除く): 25799906

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 53, 106, 109, 143, 187, 218, 221, 286, 374, 442, 583, 689, 901, 1166, 1199, 1378, 1417, 1802, 1853, 2398, 2431, 2834, 3706, 4862, 5777, 7579, 9911, 11554, 11713, 15158, 15587, 19822, 20383, 23426, 24089, 31174, 40766, 48178, 63547, 75101, 98209, 127094, 128843, 150202, 196418, 257686, 264979, 529958, 826111, 1080299, 1276717, 1652222, 2160598, 2553434, 14043887, 28087774]

約数ペア:

[(1, 28087774), (2, 14043887), (11, 2553434), (13, 2160598), (17, 1652222), (22, 1276717), (26, 1080299), (34, 826111), (53, 529958), (106, 264979), (109, 257686), (143, 196418), (187, 150202), (218, 128843), (221, 127094), (286, 98209), (374, 75101), (442, 63547), (583, 48178), (689, 40766), (901, 31174), (1166, 24089), (1199, 23426), (1378, 20383), (1417, 19822), (1802, 15587), (1853, 15158), (2398, 11713), (2431, 11554), (2834, 9911), (3706, 7579), (4862, 5777)]