28172452

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 63776160

約数和(自身を除く): 35603708

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 73, 77, 98, 146, 154, 179, 196, 292, 308, 358, 511, 539, 716, 803, 1022, 1078, 1253, 1606, 1969, 2044, 2156, 2506, 3212, 3577, 3938, 5012, 5621, 7154, 7876, 8771, 11242, 13067, 13783, 14308, 17542, 22484, 26134, 27566, 35084, 39347, 52268, 55132, 78694, 91469, 96481, 143737, 157388, 182938, 192962, 287474, 365876, 385924, 574948, 640283, 1006159, 1280566, 2012318, 2561132, 4024636, 7043113, 14086226, 28172452]

約数ペア:

[(1, 28172452), (2, 14086226), (4, 7043113), (7, 4024636), (11, 2561132), (14, 2012318), (22, 1280566), (28, 1006159), (44, 640283), (49, 574948), (73, 385924), (77, 365876), (98, 287474), (146, 192962), (154, 182938), (179, 157388), (196, 143737), (292, 96481), (308, 91469), (358, 78694), (511, 55132), (539, 52268), (716, 39347), (803, 35084), (1022, 27566), (1078, 26134), (1253, 22484), (1606, 17542), (1969, 14308), (2044, 13783), (2156, 13067), (2506, 11242), (3212, 8771), (3577, 7876), (3938, 7154), (5012, 5621)]