257748232

素因数分解:

$2^3\times 7^2\times {\mathrm{673}}^1\times {\mathrm{977}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 563592060

約数和(自身を除く): 305843828

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 673, 977, 1346, 1954, 2692, 3908, 4711, 5384, 6839, 7816, 9422, 13678, 18844, 27356, 32977, 37688, 47873, 54712, 65954, 95746, 131908, 191492, 263816, 382984, 657521, 1315042, 2630084, 4602647, 5260168, 9205294, 18410588, 32218529, 36821176, 64437058, 128874116, 257748232]

約数ペア:

[(1, 257748232), (2, 128874116), (4, 64437058), (7, 36821176), (8, 32218529), (14, 18410588), (28, 9205294), (49, 5260168), (56, 4602647), (98, 2630084), (196, 1315042), (392, 657521), (673, 382984), (977, 263816), (1346, 191492), (1954, 131908), (2692, 95746), (3908, 65954), (4711, 54712), (5384, 47873), (6839, 37688), (7816, 32977), (9422, 27356), (13678, 18844)]