257309442

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{4931}}^1$

素因数の和:5175

約数の個数: 48

約数和(自身を含む): 603203328

約数和(自身を除く): 345893886

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 223, 234, 446, 669, 1338, 2007, 2899, 4014, 4931, 5798, 8697, 9862, 14793, 17394, 26091, 29586, 44379, 52182, 64103, 88758, 128206, 192309, 384618, 576927, 1099613, 1153854, 2199226, 3298839, 6597678, 9896517, 14294969, 19793034, 28589938, 42884907, 85769814, 128654721, 257309442]

約数ペア:

[(1, 257309442), (2, 128654721), (3, 85769814), (6, 42884907), (9, 28589938), (13, 19793034), (18, 14294969), (26, 9896517), (39, 6597678), (78, 3298839), (117, 2199226), (223, 1153854), (234, 1099613), (446, 576927), (669, 384618), (1338, 192309), (2007, 128206), (2899, 88758), (4014, 64103), (4931, 52182), (5798, 44379), (8697, 29586), (9862, 26091), (14793, 17394)]