640258137

素因数分解:

$3^2\times {\mathrm{233}}^1\times {\mathrm{503}}^1\times {\mathrm{607}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 932166144

約数和(自身を除く): 291908007

約数列:

[1, 3, 9, 233, 503, 607, 699, 1509, 1821, 2097, 4527, 5463, 117199, 141431, 305321, 351597, 424293, 915963, 1054791, 1272879, 2747889, 71139793, 213419379, 640258137]

約数ペア:

[(1, 640258137), (3, 213419379), (9, 71139793), (233, 2747889), (503, 1272879), (607, 1054791), (699, 915963), (1509, 424293), (1821, 351597), (2097, 305321), (4527, 141431), (5463, 117199)]