647189968

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{4363}}^1$

素因数の和:4571

約数の個数: 40

約数和(自身を含む): 1281410048

約数和(自身を除く): 634220080

約数列:

[1, 2, 4, 8, 16, 73, 127, 146, 254, 292, 508, 584, 1016, 1168, 2032, 4363, 8726, 9271, 17452, 18542, 34904, 37084, 69808, 74168, 148336, 318499, 554101, 636998, 1108202, 1273996, 2216404, 2547992, 4432808, 5095984, 8865616, 40449373, 80898746, 161797492, 323594984, 647189968]

約数ペア:

[(1, 647189968), (2, 323594984), (4, 161797492), (8, 80898746), (16, 40449373), (73, 8865616), (127, 5095984), (146, 4432808), (254, 2547992), (292, 2216404), (508, 1273996), (584, 1108202), (1016, 636998), (1168, 554101), (2032, 318499), (4363, 148336), (8726, 74168), (9271, 69808), (17452, 37084), (18542, 34904)]