128564317

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 160174080

約数和(自身を除く): 31609763

約数列:

[1, 7, 19, 47, 131, 133, 157, 329, 893, 917, 1099, 2489, 2983, 6157, 6251, 7379, 17423, 20567, 20881, 43099, 51653, 116983, 140201, 143969, 390773, 818881, 966649, 981407, 2735411, 6766543, 18366331, 128564317]

約数ペア:

[(1, 128564317), (7, 18366331), (19, 6766543), (47, 2735411), (131, 981407), (133, 966649), (157, 818881), (329, 390773), (893, 143969), (917, 140201), (1099, 116983), (2489, 51653), (2983, 43099), (6157, 20881), (6251, 20567), (7379, 17423)]