28990766

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1104

約数の個数: 32

約数和(自身を含む): 52119552

約数和(自身を除く): 23128786

約数列:

[1, 2, 7, 14, 31, 62, 67, 134, 217, 434, 469, 938, 997, 1994, 2077, 4154, 6979, 13958, 14539, 29078, 30907, 61814, 66799, 133598, 216349, 432698, 467593, 935186, 2070769, 4141538, 14495383, 28990766]

約数ペア:

[(1, 28990766), (2, 14495383), (7, 4141538), (14, 2070769), (31, 935186), (62, 467593), (67, 432698), (134, 216349), (217, 133598), (434, 66799), (469, 61814), (938, 30907), (997, 29078), (1994, 14539), (2077, 13958), (4154, 6979)]