28540708

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 59609088

約数和(自身を除く): 31068380

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 131, 217, 251, 262, 434, 502, 524, 868, 917, 1004, 1757, 1834, 3514, 3668, 4061, 7028, 7781, 8122, 15562, 16244, 28427, 31124, 32881, 54467, 56854, 65762, 108934, 113708, 131524, 217868, 230167, 460334, 920668, 1019311, 2038622, 4077244, 7135177, 14270354, 28540708]

約数ペア:

[(1, 28540708), (2, 14270354), (4, 7135177), (7, 4077244), (14, 2038622), (28, 1019311), (31, 920668), (62, 460334), (124, 230167), (131, 217868), (217, 131524), (251, 113708), (262, 108934), (434, 65762), (502, 56854), (524, 54467), (868, 32881), (917, 31124), (1004, 28427), (1757, 16244), (1834, 15562), (3514, 8122), (3668, 7781), (4061, 7028)]